CN208641979U - Self-cleaning filter - Google Patents

Abstract

The utility model provides a kind of Self-cleaning filter, including outer cylinder, the cartridge filter set on outer barrel and the water central siphon that is arranged in cartridge filter, outer cylinder has for the outer cylinder water inlet of water to be filtered entrance and the sewage draining exit for impurity to be discharged, cartridge filter has the cartridge filter water outlet flowed out for clear water, and the spiral elasticity part of multiple circular ring shapes is fixed on cartridge filter, water central siphon has the recoil water inlet for inputting clear water, and water central siphon is equipped with the water flowing out structure communicated therewith.Self-cleaning filter provided by the utility model, in filtering and cleaning, cartridge filter subjects biggish pressure, pass through the spiral elasticity part that is sticked on cartridge filter, first is that the intensity of cartridge filter can be increased, second is that hydraulic pressure can be buffered by flexible deformation, avoids it from deforming under the dual-impingement for filtering and cleaning, guarantee filter effect.

Description

Self-cleaning filter

Technical field

The utility model belongs to filter device technical field, is to be related to a kind of Self-cleaning filter more specifically.

Background technique

The filtering of water is the essential core link of water treatment field, and filtering refers to will by physical means such as filter screens Impurity in water, which separates, to be intercepted, and water quality is improved.And the impurity being separated is easy to accumulate on filter screen under continuous filtering, Impurity is caused to block filter screen, shipwreck is to pass through filter screen, and the pressure for bearing filter screen constantly increases.In order to guarantee to filter The normal work of device needs periodically to clean filter, understands the impurity on filter screen, obtains the strainability of filter screen To restore.Cleaning filter screen is divided into artificial cleaning and automatic cleaning two ways, is able to carry out the filter cleaned automatically and is known as Self-cleaning filter.In current self-cleaning filter structure, realize that the filter structure of filtering function is usually cartridge filter, When filtering and cleaning, cartridge filter is either still external inside it to subject higher pressure, and cartridge filter is caused to be easy to become Shape influences filter effect.

Utility model content

The purpose of this utility model is to provide a kind of Self-cleaning filters, to solve filtering existing in the prior art The technical problem that the pressure that cylinder is born is larger, causes its easily-deformable.

In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of Self-cleaning filter, including Outer cylinder, the cartridge filter set on the outer barrel and the water central siphon that is arranged in the cartridge filter, the outer cylinder have for Crossing the outer cylinder water inlet of drainage entrance and the sewage draining exit for impurity to be discharged, the cartridge filter has the mistake flowed out for clear water Filter cylinder water outlet, the Self-cleaning filter further include being tightly attached to the cartridge filter and the spiral elasticity for increasing intensity Part, the water central siphon has the recoil water inlet for inputting clear water, and the water central siphon is equipped with the water outlet knot communicated therewith Structure.

Further, the quantity of the spiral elasticity part is multiple, and the spacing of the adjacent helical member is equal.

Further, the spiral elasticity part is fixed on the inner wall of the cartridge filter.

Further, the water flowing out structure includes multiple nozzles being fixed on the water central siphon outer wall, the nozzle with The water central siphon is connected.

Further, the water flowing out structure further includes the connecting tube for being connected to the water central siphon and the nozzle.

Further, further include driving structure for driving water central siphon rotation.

Further, the pressure sensor for testing hydraulic pressure, the pressure sensor and institute are equipped in the cartridge filter State driving structure electrical connection.

Further, the outer cylinder water inlet is connected with outer cylinder water inlet pipe, and the outer cylinder water inlet pipe is close to the outer cylinder The direction of water flow and the direction of rotation of water flow in the outer cylinder are tangent in one end.

Further, the cartridge filter water outlet is connected with the recoil water inlet, the cartridge filter water outlet and institute It states and is equipped with recoil water pump between recoil water inlet.

Further, it is connected with sewage pipe at the sewage draining exit, is provided with blowdown valve on the sewage pipe.

The beneficial effect of Self-cleaning filter provided by the utility model is: compared with prior art, this is practical new For type Self-cleaning filter in filtering, water to be filtered flows into the inside of cartridge filter from the outside of cartridge filter；The filter is certainly When cleaning, water flow passes sequentially through water central siphon, water flowing out structure enters in cartridge filter, and the water flow of cleaning is from cartridge filter inner flow passage cartridge filter Outside.In this way, cartridge filter subjects biggish pressure in filtering and cleaning, by the spiral elasticity part that is sticked on cartridge filter, First is that the intensity of cartridge filter can be increased, second is that hydraulic pressure can be buffered by flexible deformation, it is avoided to filter and cleaning dual The lower deformation of impact, guarantees filter effect.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is structural schematic diagram when Self-cleaning filter provided by the embodiment of the utility model filters；

Structural schematic diagram when Fig. 2 is Self-cleaning filter self-cleaning provided by the embodiment of the utility model；

Fig. 3 is the structural schematic diagram of cartridge filter provided by the embodiment of the utility model；

Fig. 4 is the top view of Self-cleaning filter provided by the embodiment of the utility model.

Wherein, each appended drawing reference in figure:

1- outer cylinder；121- outer cylinder water inlet；122- sewage draining exit；123- sewage pipe；124- blowdown valve；125- outer cylinder enters water Pipe；2- cartridge filter；21- spiral elasticity part；230- cartridge filter water outlet；24- intake pipe；3- water central siphon；31- recoil water inlet； 4- water flowing out structure；41- connecting tube；42- nozzle；5- driving structure；6- recoil water pipe；7- recoil water pump.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or indirectly on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

It is to be appreciated that term " length ", " width ", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is that orientation based on the figure or position are closed System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

Also referring to Fig. 1 to Fig. 3, now Self-cleaning filter provided by the utility model is illustrated.It is somebody's turn to do from clear Formula filter is washed, there is the cartridge filter 2 including outer cylinder 1, inside outer cylinder 1, outer cylinder 1 outer cylinder entered for water to be filtered to enter water Mouth 121 and the sewage draining exit 122 for the impurity intercepted after filtering to be discharged, cartridge filter 2 have the cartridge filter flowed out for clear water Water outlet 230.Wherein, cartridge filter 2 is made of hard material, be provided with to bear the impact of water flow, and on cartridge filter 2 mesh or The size in person gap, mesh or gap is selected according to filtering requirement, and the quantity and distribution in mesh or gap are not construed as limiting herein. Certainly, in other embodiments, cartridge filter 2 can also be porous material.The water flow of filter interior when what is indicated in Fig. 1 is filtering State, arrow direction are water (flow) direction.Water to be filtered enters in outer cylinder 1 from from outer cylinder water inlet 121, and generates in lasting water inlet Hydraulic pressure under the action of, water to be filtered is from outer cylinder 1 towards the internal flow of cartridge filter 2, and cartridge filter 2 is by the impurity in water to be filtered Stop on the outside, to have passed through filtering into the water in cartridge filter 2, become clear water, clear water is flowed by cartridge filter water outlet 230 Out, filtering is completed.When water to be filtered enters in cartridge filter 2 from outer cylinder 1, biggish pressure can be generated to cartridge filter 2, especially When being that hydraulic pressure is higher, and being sticked on cartridge filter 2 has spiral elasticity part 21, can reinforce the intensity of cartridge filter 2, and cartridge filter 2 is avoided to produce The deformations such as raw pit, and spiral elasticity part 21 has elasticity, and in water slug cartridge filter 2, spiral elasticity part 21 can be by certainly The deformation of body has certain buffer function to hydraulic pressure.Optionally, spiral elasticity part 21 is coil spring, along the side wall of cartridge filter Around setting.The Self-cleaning filter further includes the water central siphon 3 in cartridge filter 2, and water central siphon 3 has for inputting clear water Recoil water inlet 31, the water flowing out structure 4 also communicated therewith on water central siphon 3.It is indicated in Fig. 2 when being self-cleaning in filter The streamflow regime in portion, arrow direction is water (flow) direction, and in self-cleaning filter, clear water enters water axis by recoil water inlet 31 It in pipe 3, and is sprayed from water flowing out structure 4 in the presence of hydraulic pressure, the water flow of ejection is out of cartridge filter 2 towards anti-outside cartridge filter 2 To injection, impurity is washed from cartridge filter 2, impurity is discharged from sewage draining exit 122 by impurity outside flushed filter cylinder 2.It is tied in water outlet When structure 4 is sprayed water towards cartridge filter 2, cartridge filter 2 bears hydraulic pressure from the inside to the outside, and the setting of spiral elasticity part 21 can prevent cartridge filter Outwardly convex deformation.

Self-cleaning filter provided by the utility model, compared with prior art, the filtering of the utility model self-cleaning type For device in filtering, water to be filtered flows into the inside of cartridge filter 2 from the outside of cartridge filter 2；The filter in self-cleaning, water flow according to Secondary to be entered in cartridge filter 2 by water central siphon 3, water flowing out structure 4, the water flow of cleaning is outside 2 inner flow passage cartridge filter 2 of cartridge filter.In this way, In filtering and cleaning, cartridge filter 2 subjects biggish pressure, by being sticked spiral elasticity part 21 in cartridge filter 2, first is that can To increase the intensity of cartridge filter 2, second is that hydraulic pressure can be buffered by flexible deformation, avoid it under the dual-impingement for filtering and cleaning Deformation guarantees filter effect.

Further, referring to Fig. 3, a kind of specific embodiment party as Self-cleaning filter provided by the utility model Formula, the quantity of spiral elasticity part 21 be it is multiple, the spacing between adjoining spiral elastic component 21 is identical, can bear pressure more Big hydraulic pressure.The quantity of spiral elasticity part 21 and the length of spiral elasticity part 21 are not construed as limiting herein, can be according to the big of hydraulic pressure Small and cartridge filter 2 length is selected.

Further, referring to Fig. 3, a kind of specific embodiment party as Self-cleaning filter provided by the utility model Formula, spiral elasticity part 21 are fixed on the inner wall of cartridge filter 2.More specifically, the outer wall of spiral elasticity part 21 is attached at cartridge filter 2 On inner wall, around twist on the inner wall of cartridge filter 2.In another embodiment, spiral elasticity part 21 is fixed on cartridge filter 2 Outer wall, the inner wall of spiral elasticity part 21 is attached on the outer wall of cartridge filter 2, around twist on the outer wall of cartridge filter 2.

Fig. 1 and Fig. 2 is please referred to, as a kind of specific embodiment of Self-cleaning filter provided by the utility model, Water flowing out structure 4 includes the nozzle 42 being fixed on 3 outer wall of water central siphon, and nozzle 42 is connected to water central siphon 3, inputs water central siphon in clear water After 3, clear water is sprayed from nozzle 42, and nozzle 42 is equipped with multiple apertures, and clear water forms high pressure water flow under the action of aperture, by mistake Outer jet of the inside of filter cylinder 2 towards cartridge filter 2.In this embodiment, nozzle 42 further increases the jet pressure of water flow Power makes impurity be easier to fall off from cartridge filter 2.Nozzle 42 is chosen as multiple, and particular number is not construed as limiting herein.Multiple sprays Mouth 42 is preferably spirally arranged along 3 outer wall of water central siphon, it is made to clean to each position of cartridge filter 2 as much as possible.

A kind of specific embodiment party please continue to refer to Fig. 1 and Fig. 3, as Self-cleaning filter provided by the utility model Formula, nozzle 42 are connect in cone, the conical top of nozzle 42 with water central siphon 3, and the conical base of nozzle 42 is set towards cartridge filter 2 It sets, the aperture on nozzle 42 is set to the conical base of nozzle 42, and the water flow for ejecting single-nozzle 42 is in cone spray outward It penetrates.On the one hand this kind of 42 structure of nozzle can increase the number of aperture；On the other hand it can increase the injection water of single-nozzle 42 Swept area increases the region that single-nozzle 42 can clean.

A kind of specific embodiment party please continue to refer to Fig. 1 and Fig. 2, as Self-cleaning filter provided by the utility model Formula, water flowing out structure 4 further include the connecting tube 41 for being connected to water central siphon 3 and nozzle 42.In this way, clear water flows successively through water central siphon 3, connection Then pipe 41 is sprayed from nozzle 42.Connecting tube 41, which is arranged, shortens the distance between nozzle 42 and 2 inner wall of cartridge filter, therefore from The pressure for the water flow that nozzle 42 reaches cartridge filter 2 after projecting indirectly increases, and is more advantageous to and sweeps away the tighter obstinate impurity of adherency. Preferably, the length direction of connecting tube 41 is identical as the radial direction of water central siphon 3.In this embodiment, water central siphon 3 is set vertically It sets, connecting tube 41 is horizontally disposed, and the central axis of connecting tube 41 passes through the axis of water central siphon 3.The quantity and nozzle of connecting tube 41 42 quantity is identical, and each connecting tube 41 has been correspondingly connected with a nozzle 42.Connecting tube 41 is made of hard material, specific material Material is not construed as limiting herein.

Further, referring to Fig. 2, a kind of specific embodiment party as Self-cleaning filter provided by the utility model Formula, the Self-cleaning filter further include the driving structure 5 for driving water central siphon 3 to rotate.In self-cleaning, clear water enters water Central siphon 3 is simultaneously sprayed from water flowing out structure 4, while driving structure 5 drives water central siphon 3 to rotate, and makes to spray rotation from water flowing out structure 4 Water flow, the impurity being more advantageous on flushed filter cylinder 2.

Further, Fig. 2 and Fig. 4 is please referred to, one kind as Self-cleaning filter provided by the utility model is specific Embodiment, is connected with outer cylinder water inlet pipe 125 at outer cylinder water inlet 121, outer cylinder water inlet pipe 125 close to one end of outer cylinder 1, in The water (flow) direction in portion and the direction of rotation of water flow in outer cylinder 1 are tangent, the water (flow) direction in outer cylinder 1 refer to cartridge filter 2 and outer cylinder 1 it Between water flow flow direction.Water direction and length of the outer cylinder water inlet pipe 125 at outer cylinder 1 are entered due to outer cylinder water inlet 121 Degree direction is identical, and the water to be filtered flowed into outer cylinder 1 rotates under the effect of blocking of 1 inner wall of outer cylinder around the axis direction of outer cylinder 1, Generate spin current.Optionally, the central axis of outer cylinder 1, cartridge filter 2 and water central siphon 3 overlaps, so that spin current is from each side Suffered power is identical when entering cartridge filter 2 to, each position, so that the Impurity Distribution position on 2 surface of cartridge filter and quantity are substantially It is identical, realize maximally utilizing to cartridge filter 2；Further, it enables the rotary water current sprayed from water central siphon 3 is in cartridge filter 2 and outside All directions, the Impact direction of each position on cylinder 1 are identical, more effectively remove the impurity for being adhered to the full surface of cartridge filter 2. In the process of cleaning, sustainable at outer cylinder water inlet 121 to be pumped into water to be filtered, the direction of rotation of water central siphon 3 and outer cylinder 1 are interior to mistake The direction of rotation of drainage is identical, in outer cylinder 1 under the collective effect of rotary water current and injection water, makes the full surface of cartridge filter 2 Fully cleaned, and during self-cleaning, which is still constantly filtering, filter and clean at the same into Row, improves the efficiency of filtering.

A kind of specific embodiment party please continue to refer to Fig. 1 and Fig. 2, as Self-cleaning filter provided by the utility model Formula, cartridge filter water outlet 230 are connected with recoil water inlet 31, are equipped between cartridge filter water outlet 230 and recoil water inlet 31 Recoil water pump 7.Pass through back-flushing between cartridge filter water outlet 230 and recoil water pump 7, recoil water pump 7 and recoil water inlet 31 Pipe 6 is connected to, and filtering water outlet can connect intake pipe 24, convenient for obtaining clean water.What is flowed out in cartridge filter water outlet 230 is Filtered clear water, filtered clear water directly pass through recoil water pump 7 and are pumped into water central siphon 3, no longer need to additionally access from outside Clear water cleans cartridge filter 2, and the clear water filtered out using the device simplifies the structure of the self-cleaning filter.Self-cleaning When, water to be filtered is persistently pumped into outer cylinder 1, endlessly clear water is provided for water central siphon 3, in addition, the spin current in outer cylinder 1 It can also be matched with the water flow ejected, the impurity come will be swept away and do downward rotary motion, concentrate impurity from sewage draining exit 122 discharges.Recoil water pump 7 keeps the injection hydraulic pressure at nozzle 42 bigger for high-pressure hydraulic pump for increasing the pressure of water flow.

A kind of specific embodiment party please continue to refer to Fig. 1 and Fig. 2, as Self-cleaning filter provided by the utility model Formula is equipped with sewage pipe 123 at sewage draining exit 122, is provided with blowdown valve 124 on sewage pipe 123.In filter filtering, blowdown Valve 124 is closed, and filtered water is discharged and collects via cartridge filter water outlet 230, when filter carries out self-cleaning, blowdown valve 124 open, and impurity is discharged by sewage draining exit 122.Blowdown valve 124 is chosen as solenoid valve.

As a kind of specific embodiment of Self-cleaning filter provided by the utility model, the self-cleaning filter is also Including control device (in figure unmarked), control device includes for testing the pressure sensor of hydraulic pressure (in figure unmarked), pressure Force snesor is set in cartridge filter 2, and pressure sensor is electrically connected with driving structure 5.In this embodiment, control device also with Recoil water pump 7 and the electrical connection of blowdown valve 124.When the filter is during continuous service, the impurity that cartridge filter 2 intercepts is also more next It is more, cartridge filter 2 is gradually blocked, the discharge reduction for flowing through cartridge filter 2 is made, the pressure decline inside cartridge filter 2, pressure sensor When the pressure detected is less than predetermined value, control device is transmitted its signals to, control device issues instruction, starting driving knot Structure 5, opens blowdown valve 124 at starting recoil water pump 7, completes the preparation for carrying out self-cleaning；Self-cleaning carries out a period of time Afterwards, after pressure sensor detects that pressure recovery is normal, control device issues instruction, closes driving structure 5, closes recoil water pump 7, blowdown valve 124 is closed, continues to filter.In this way, the automatic control of self-cleaning is realized, it, can after adding pressure sensor The pressure value of automatic detection cartridge filter 2, judges whether to need to clean, without manually controlling cleaning by pressure value.Optionally, it presses The quantity of force snesor be it is multiple, be uniformly distributed on the inner wall of cartridge filter 2, due to each position of cartridge filter 2 pressure may Difference, therefore the pressure value that pressure sensor detects is also different, the average value that can detect each pressure sensor and pre- level pressure Force value compares, and judges whether to need to clean.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. Self-cleaning filter, it is characterised in that: including outer cylinder, set on the outer barrel cartridge filter and be arranged in Water central siphon in the cartridge filter, the outer cylinder have for the outer cylinder water inlet of water to be filtered entrance and for impurity to be discharged Sewage draining exit, the cartridge filter has the cartridge filter water outlet that flow out for clear water, and the Self-cleaning filter further includes abutting In the cartridge filter and for increasing the spiral elasticity part of intensity, the water central siphon, which has, enters water for inputting the recoil of clear water Mouthful, and the water central siphon is equipped with the water flowing out structure communicated therewith.

2. Self-cleaning filter as described in claim 1, it is characterised in that: the quantity of the spiral elasticity part be it is multiple, The spacing of the adjacent helical member is equal.

3. Self-cleaning filter as described in claim 1, it is characterised in that: the spiral elasticity part is fixed on the filtering The inner wall of cylinder.

4. Self-cleaning filter as described in claim 1, it is characterised in that: the water flowing out structure includes multiple being fixed on institute The nozzle on water central siphon outer wall is stated, the nozzle is connected with the water central siphon.

5. Self-cleaning filter as claimed in claim 4, it is characterised in that: the water flowing out structure further includes being connected to the water The connecting tube of central siphon and the nozzle.

6. Self-cleaning filter as described in any one in claim 1-5, it is characterised in that: further include for driving the water The driving structure of central siphon rotation.

7. Self-cleaning filter as claimed in claim 6, it is characterised in that: be equipped in the cartridge filter for testing hydraulic pressure Pressure sensor, the pressure sensor is electrically connected with the driving structure.

8. Self-cleaning filter as described in any one in claim 1-5, it is characterised in that: the outer cylinder water inlet connection There are outer cylinder water inlet pipe, the rotation of outer cylinder water inlet pipe water flow in the direction of water flow in described outer cylinder one end and the outer cylinder Direction is tangent.

9. Self-cleaning filter as described in any one in claim 1-5, it is characterised in that: the cartridge filter water outlet and institute It states recoil water inlet to be connected, recoil water pump is equipped between the cartridge filter water outlet and the recoil water inlet.

10. Self-cleaning filter as described in any one in claim 1-5, it is characterised in that: be connected at the sewage draining exit Sewage pipe is provided with blowdown valve on the sewage pipe.