CN220703314U - Filtering cylinder with backwashing function - Google Patents

Abstract

The utility model provides a filtering cylinder with a back flushing function, which comprises a cylinder body, a first water gap, a second water gap, a third water gap and a filtering material, wherein the first water gap, the second water gap, the third water gap and the filtering material are arranged in the cylinder body. The third water gap is arranged in the first space, and the water outlet direction is inclined towards the inner wall of the cylinder body so as to flow into a preset third water flow which can form rotary water flow on the filter material during back flushing. According to the filtering cylinder with the back flushing function, the water outlet is formed in the filtering material during back flushing, so that the rotary water flow is formed on the filtering material, the cleaning effect on the upper part of the filtering material is improved, the filtering material is automatically cleaned without dead angles, the manual auxiliary cleaning is not needed, the labor cost is saved, the cleaning time and the cleaning water are reduced, and the cleaning efficiency is improved.

Description

Filtering cylinder with backwashing function

Technical Field

The utility model relates to the technical field of liquid filtration, in particular to a filter cylinder with a back flushing function.

Background

The existing filter cylinder is generally composed of a cylindrical container and a filter material, wherein the filter material generally adopts filter materials with different particle sizes (such as quartz sand, coal activated carbon and the like) and can effectively filter out impurities and particulate matters in water, thereby realizing the purpose of purifying water quality. In the filtering process, water enters the filtering material from the top, is filtered layer by the filtering material layer and flows out from the bottom. However, when excessive accumulation of impurities in the filter material occurs, flushing and cleaning are required to maintain proper operation of the device, extending the useful life of the filter material.

The prior art generally uses an enlarged water inlet pipeline to wash the filtering material, but the cleaning effect is poor, a plurality of dead angles exist, the filtering material cannot be cleaned, and the time is long. Moreover, the manual auxiliary mode of cleaning the impurities of the filtering material is adopted, so that the labor cost is high and the efficiency is low. In order to improve the flushing effect and the working efficiency, it is necessary to design more efficient and accurate cleaning schemes and equipment.

Disclosure of Invention

The utility model provides a filtering cylinder with a back flushing function aiming at the defects in the prior art.

Specifically, the filtering cylinder with the back flushing function comprises a cylinder body, a first water gap, a second water gap, a third water gap and a filtering material, wherein the first water gap, the second water gap, the third water gap and the filtering material are arranged in the cylinder body;

a first space is arranged above the filtering material in the cylinder body, and the first water gap is arranged in the first space so as to flow into a preset first water flow to be filtered during filtering and discharge sewage in the first space during back flushing;

the second water gap is arranged in the filtering material or a second space below the filtering material, so as to discharge filtered liquid during filtering and flow into a preset second water flow for backwashing the filtering material during backwashing;

the third water gap is arranged in the first space, and the water outlet direction is inclined towards the inner wall of the cylinder body so as to flow into a preset third water flow which can form rotary water flow on the filter material during back flushing.

In the above technical solution, preferably, an injection mechanism is disposed on the second water port, and the injection mechanism is configured to inject the second water flow toward multiple directions.

In the above technical solution, preferably, the spraying mechanism is a multi-layer eight-claw structure, and each layer of eight-claw structure includes a central pipe connected with the second water gap and branch pipes connected to the central pipe, so as to disperse the second water flow to backwash the filtering material in multiple directions;

the central pipes of each layer of eight-claw structure are sequentially connected, and branch pipes are arranged in a staggered manner.

In the above technical solution, preferably, a filter bed is disposed at the bottom of the filter material, and the filter bed is used for separating the filter material from the second space;

the filter cap is arranged in the filter bed and is used for collecting liquid in the filter material to the second space during filtering and enabling the liquid in the second space to back flush the filter material during back flush.

In the above technical solution, preferably, a spraying device is disposed on the first water gap, and the spraying device is used for making the liquid to be filtered uniformly flow into the filtering material.

In the above technical solution, preferably, the first water gap is disposed on a central axis of the cylinder body, so as to discharge the rotating water flow faster during back flushing.

In the above technical solution, preferably, the first water gap is connected with a first pipe, and the first water flow flows out of a preset first area and flows into the first space through the first pipe;

the second water gap is connected with a second pipeline, and the filtered water flow is discharged from the cylinder body and flows into the first area through the second pipeline so as to carry out circulating filtration.

In the above technical solution, preferably, the third nozzle is provided with a nozzle for adjusting the water outlet direction of the third nozzle.

In the above technical solution, preferably, the filter further comprises a driving module disposed outside the cylinder, and the driving module includes one or more transfer pumps for transferring the first water flow into the first space during filtering, and for backwashing the second water flow against the filter material and forming the third water flow into a rotating water flow on the filter material during backwashing.

In the above technical solution, preferably, the device further comprises a control device;

the control device is used for controlling the delivery pump to perform back flushing on the filter material from bottom to top in an intermittent mode.

The beneficial effects are that: according to the filter cylinder with the back flushing function, the water outlet is formed in the filter material during back flushing, so that a rotary water flow is formed on the filter material, and the cleaning effect on the upper part of the filter material is improved. The washing device has the advantages that the washing effect is improved under the condition that the fluid strength is not increased, the automatic dead angle-free washing of the filtering material is realized, the manual auxiliary washing is not needed, the labor cost is saved, the washing time and the washing water are reduced, and the washing efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of the injection mechanism of the present utility model;

FIG. 3 is a schematic view showing the installation structure of the quartz sand layer, the activated carbon layer, the gravel layer and the filter cap according to the present utility model;

FIG. 4 is a schematic view of a third plurality of pipes according to the present utility model;

FIG. 5 is a schematic view of a second space structure according to the present utility model;

FIG. 6 is a schematic diagram of a three-layer filtration structure according to the present utility model.

The reference numerals are as follows: 1-a first pipe; 2-a second pipe; 3-a third pipe; 4-cylinder; 5-a first space; 6-quartz sand layer; 7-an activated carbon layer; 8-a gravel layer; 9-cover plate; 10-supporting feet; 11-a first nozzle; 12-a first water pump; 13-cylinder central shaft; 14-a filter cap; 15-spraying device; 18-a filter material; 21-a second nozzle; 22-a second water pump; 27-a filter bed; 31-a third nozzle; 32-a third water pump; 35-a second space; 36-a central tube; 37-branch pipe; 40-spraying mechanism.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model.

Hereinafter, various embodiments of the present utility model will be described more fully. The utility model is capable of various embodiments and of modifications and variations therein. However, it should be understood that: there is no intention to limit the various embodiments of the utility model to the specific embodiments disclosed herein, but rather the utility model is to be understood to cover all modifications, equivalents, and/or alternatives falling within the spirit and scope of the various embodiments of the utility model.

Hereinafter, the terms "comprises" or "comprising" as may be used in various embodiments of the present utility model indicate the presence of the disclosed functions, operations or elements, and are not limiting of the addition of one or more functions, operations or elements. Furthermore, as used in various embodiments of the utility model, the terms "comprises," "comprising," and their cognate terms are intended to refer to a particular feature, number, step, operation, element, component, or combination of the foregoing, and should not be interpreted as first excluding the existence of or increasing likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.

In various embodiments of the utility model, the expression "or" at least one of a or/and B "includes any or all combinations of the words listed simultaneously. For example, the expression "a or B" or "at least one of a or/and B" may include a, may include B or may include both a and B.

Expressions (such as "first", "second", etc.) used in the various embodiments of the utility model may modify various constituent elements in the various embodiments, but the respective constituent elements may not be limited. For example, the above description does not limit the order and/or importance of the elements. The above description is only intended to distinguish one element from another element. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of various embodiments of the present utility model.

It should be noted that: in the present utility model, unless explicitly specified and defined otherwise, terms such as "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between the interiors of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, it should be understood by those of ordinary skill in the art that the terms indicating an orientation or a positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of description, not to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

The terminology used in the various embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the various embodiments of the utility model. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the utility model belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments of the utility model.

Example 1

The embodiment provides a filtering cylinder with a back flushing function, and the filtering cylinder has the filtering function and the back flushing function, and the whole structure is shown in figure 1. The specific scheme is as follows:

the filtering cylinder with the back flushing function comprises a cylinder body 4, a first water port 11, a second water port 21, a triple water port 31, a first pipeline 1, a second pipeline 2, a third pipeline 3 and a filtering material 18 positioned inside the cylinder body 4. In fig. 1, the cylinder 4 is preferably cylindrical in shape so as to form a rotating water flow, and a first space 5 is above the cylinder 4. The predetermined first water flow is a liquid to be filtered from a predetermined first area (not shown) of the cylinder, illustratively a swimming pool, and the first water flow is a liquid to be filtered in the swimming pool. The top of the cylinder 4 is provided with a cover plate 9, the cover plate 9 being openable outwards to maintain the normal operation of the apparatus. The bottom of the cylinder 4 is provided with a plurality of support feet 10, the support feet 10 being used to support the cylinder 4 and to keep the cylinder 4 horizontal.

In the embodiment shown in fig. 3 and 5, the filter material 18 divides the interior of the cylinder 4 into a first space 5 and a second space 35 for filtering a preset first water flow in the first space 5 and flowing the filtered liquid to the second space 35. In the present embodiment, the filter bed 27 is provided at the bottom of the filter material 18 for separating the filter material 18 from the second space 35, the filter cap 14 is provided in the filter bed 27, the filter cap 14 is used for collecting the liquid in the filter material 18 to the second space 35 during filtering, and the liquid in the second space 35 is backwashed to the filter material 18 during backwashing.

In the embodiment shown in fig. 1 and 6, the cylinder 4 is divided into the first space 5 and the filter material 18, the second water gap 21 is provided in the filter material 18, and the injection mechanism 40 is provided on the second water gap 21. Preferably, the spray mechanism 40 is a two-layer eight-jaw structure, with the two-layer eight-jaw structure being staggered for flushing in different directions. The eight-claw structure comprises a central pipe 36 and a branch pipe 37, wherein the central pipe 36 is connected with the second water gap 21, and the branch pipe 37 is connected with the central pipe 36. Each layer of eight claw structures is provided with 8 branch pipes 37 evenly distributed on different directions, and the end part of each branch pipe 37 is provided with a water outlet, so that water flow is more dispersed, flushing positions are more, and dead angles are fewer. In other embodiments, one or more layers of eight-claw structures are provided on the second nozzle 21, and each layer of eight-claw structure is staggered.

As shown in fig. 3 and 6, the filter material 18 is provided with three layers, and the filter material 18 is provided with a quartz sand layer 6, an activated carbon layer 7 and a gravel layer 8 in this order from top to bottom. Quartz sand layers are mainly used for filtering suspended substances and particulate matters in liquids, such as silt and rust. The active carbon layer is mainly used for filtering organic matters, heterochromatic matters, odor and the like in liquid, and the porous performance of the active carbon layer can adsorb fine matters in various liquids. The scintillation layer is mainly used to filter sediment and particulates in water, such as sand, sludge, etc. The filter material 18 may be a single layer or multiple layers, and in other embodiments, the filter material 18 is other filter materials, and the filter material 18 is densified sequentially from bottom to top. This layer-by-layer filtration provides maximum water purification while also preventing clogging or damage to the filter material 18 and extending the service life.

Preferably, the first pipe 1 is provided with a first water gap 11 in the first space 5 for letting a first water flow to be filtered into the first space 5 during filtering and for draining the sewage of the first space 5 during flushing. The second pipe 2 is provided with a second water opening 21 in the second space 35 for discharging the filtered liquid in the second space 35 during filtering and for flowing into a preset second water flow for backwashing the filter material 18 during flushing. The predetermined second water flow and the predetermined third water flow are both from an external water source, which is a water source with little or no impurities, to better flush the impurities in the filter material 18. In other embodiments, the external water source is a liquid in the first zone. The third pipe 3 is provided with a third water port 31 in the first space 5, the water outlet direction of which is inclined toward the inner wall of the cylinder 4, so that a preset third water flow which can form a rotary water flow on the filter material 18 is flowed in during flushing, and the impurity on the filter material 18 is driven to rotate by the rotary water flow to form sewage in the first space 5.

In a specific embodiment, the filter cylinder further comprises a driving module arranged outside, wherein the driving module comprises one or more delivery pumps, and the delivery pumps can be water pumps or other pump bodies for driving liquid to move. Preferably, the driving module includes: the first water pump 12, the second water pump 22 and the third water pump 32, the first pipeline 1 is respectively connected with a first area and an external sewage pipeline outside the cylinder body 4, and the first pipeline 1 is also connected with the first water pump 12. When filtering, the first water pump 12 is used for delivering the liquid to be filtered to the first water port 11 for discharge. The first water pump 12 is used for delivering the liquid in the first water gap 11 to an external drain pipe for discharge when back flushing. The second pipeline 2 is connected with an external water source outside the cylinder body 4, the second pipeline 2 is also connected with a second water pump 22, and the second water pump 22 is used for discharging liquid in the second water gap 21 when filtering; the second water pump 22 is used for delivering the liquid in the external water source to the second water port 21 for discharge when back flushing. In other embodiments, the second water pump 22 is configured to convey the liquid in the second water gap 21 to the first area through the second pipe 2 to implement the circulation filtration, for example, the first area is a swimming pool, and the liquid in the swimming pool is filtered by the filtering material 18 and then discharged into the swimming pool to implement the circulation filtration. In other embodiments, the filtered liquid is discharged through the second pipe 2 to an external storage device for storing the filtered liquid.

Preferably, the present utility model also includes a control device for controlling the second water pump 22 to intermittently flush under the filter material 18. The water flow with larger impact force can generate larger impact force at the moment of opening the water flow, and the washing effect of the water flow with larger impact force on the filter material 18 is better. Thus, the second water pump 22 intermittently flushes the filter material 18 underneath. In one specific embodiment, the cycle is repeated intermittently with the second water pump turned on for 5 seconds and then turned off for 2 seconds. Under the condition that the power of the water pump is the same, the flushing effect of the external water flow on the filter material 18 is better by adopting an intermittent mode to drive the external water flow.

During filtration, the first water gap 11 is used for delivering the liquid to be filtered onto the filter material 18, and the second water gap 21 is used for discharging the filtered water out of the accommodating cavity. During back flushing, the first water gap 11 is used for discharging sewage on the filter material 18, and the second water gap 21 is used for providing back flushing water flow.

Preferably, the third conduit 3 is connected to an external water source to provide a third water flow during backwash. The third pipe 3 is connected to a third water pump 32. The third water pump 32 is used to deliver liquid from an external water source to the third water port 31 for discharge during backwash to create a rotating water flow over the filter material 18. The third water port 31 is provided with a nozzle (not shown) for adjusting the direction of the water outlet of the third water port 31. The direction of rotation of the rotary water flow and the impurities in the dead angle can be adjusted by adjusting the direction of the nozzle. The water outlet direction of the third water port 31 does not face the cylinder central shaft 13, and when the water outlet direction of the third water port 31 faces the cylinder central shaft 13, no rotational water flow can be generated. In other embodiments, the third conduit 3 is connected to the second conduit 2, and the third conduit 3 is supplied with water from the second conduit 2 during flushing.

Preferably, a tangential direction of a joint center point of the third pipe 3 and the cylinder 4 is defined as a first direction, and a water outlet direction of the third water port 31 is defined as a second direction.

In the first embodiment, the third conduit 3 remains straight after entering the cylinder 4, and the second direction is parallel to the horizontal plane. The first direction and the second direction are set to have an angle ranging from more than 0 deg. to less than 90 deg. to form a stable rotating water flow in the first space 5.

In other embodiments, the third pipe 3 is kept straight after entering the cylinder 4, and when the angle between the first direction and the second direction is 90 °, the water flowing out of the third pipe 3 directly flows to the bottom of the cylinder 4, so that a stable rotating water flow cannot be formed. When the angle between the first direction and the second direction is 0 °, the water flowing out of the third pipe 3 directly collides against the inner wall of the cylinder 4, and thus a stable rotating water flow cannot be formed.

The second direction may also be, for example, not parallel to the horizontal sheets, but at an angle to the horizontal in the range of less than 90, i.e. the second direction is not perpendicular to the horizontal, in which case the water flow from the third conduit 3 provides a tangential force to the water flow on the filter material 18, causing the water flow to form a rotating water flow on the filter material 18. When the second direction is perpendicular to the horizontal plane, the water flow coming out of the third conduit 3 flows vertically towards the filtering material 18 or towards the top of the cylinder 4, so that no rotating water flow can be formed.

In order to avoid the rotary water flow from the filter material 18 flowing into the second space 35, the rotary water flow may be controlled after the second water pump 22 fills the second space 35 and the filter material 18, or the rotary water flow may be controlled after the third water pump 32 fills the second space 35 and the filter material 18.

Preferably, the first water gap 11 is arranged on the central axis 13 of the cylinder in the first space 5, the first water gap 11 being located in the centre of the rotating water flow during flushing, increasing the speed of the rotating water flow exiting the first space 5. The first water gap 11 is provided with a spraying device 15, and the spraying device 15 is used for enabling the liquid to be filtered to evenly flow into the filter material 18, so that the impurity distribution on the filter material 18 is more uniform.

In other embodiments, as shown in fig. 4, a plurality of third pipes 3 and third water ports 31 are provided in common, such as the third pipes 3 uniformly provided on the side wall of the cylinder 4, the water flow is now more stable.

According to the filter cylinder with the back flushing function, the water outlet is formed in the filter material during back flushing, so that a rotary water flow is formed in the filter material, and the cleaning effect on the filter material is improved. The washing device has the advantages that the washing effect is improved under the condition that the fluid strength is not increased, the automatic dead angle-free washing of the filtering material is realized, the manual auxiliary washing is not needed, the labor cost is saved, the washing time and the washing water are reduced, and the washing efficiency is improved.

While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims (10)

1. The filtering cylinder with the backwashing function is characterized by comprising a cylinder body, a first water gap, a second water gap, a third water gap and a filtering material, wherein the first water gap, the second water gap, the third water gap and the filtering material are positioned in the cylinder body;

a first space is arranged above the filtering material in the cylinder body, and the first water gap is arranged in the first space so as to flow into a preset first water flow to be filtered during filtering and discharge sewage in the first space during back flushing;

the second water gap is arranged in the filtering material or a second space below the filtering material, so as to discharge filtered liquid during filtering and flow into a preset second water flow for backwashing the filtering material during backwashing;

the third water gap is arranged in the first space, and the water outlet direction is inclined towards the inner wall of the cylinder body so as to flow into a preset third water flow which can form rotary water flow on the filter material during back flushing.

2. The filter bowl with backwash function according to claim 1, wherein an injection mechanism is provided on the second water port for injecting the second water flow in multiple directions.

3. The filter bowl with backwash function according to claim 2, wherein the spray mechanism is a multi-layer eight-claw structure, each layer of eight-claw structure comprising a central tube connected to a second water port and branch pipes connected to the central tube for dispersing the second water flow to backwash the filter material in multiple directions;

the central pipes of each layer of eight-claw structure are sequentially connected, and branch pipes are arranged in a staggered manner.

4. A filter bowl with backwash function according to claim 1, wherein the bottom of the filter material is provided with a filter bed for separating the filter material from the second space;

the filter cap is arranged in the filter bed and is used for collecting liquid in the filter material to the second space during filtering and enabling the liquid in the second space to back flush the filter material during back flush.

5. A filter bowl with backwash function according to claim 1, wherein a spraying device is provided on the first water gap for evenly flowing the liquid to be filtered into the filter material.

6. A filter bowl with backwash function according to claim 1, wherein the first water gap is arranged on the central axis of the bowl to drain the rotating water stream faster during backwash.

7. The filter bowl with backwash function according to claim 1, wherein the first water port is connected to a first pipe through which the first water flow flows from a predetermined first area into the first space;

the second water gap is connected with a second pipeline, and filtered water flow is discharged from the cylinder body and flows into the first area through the second pipeline so as to carry out circulating filtration.

8. The filtering vat with back flushing function according to claim 1, wherein a nozzle for adjusting the water outlet direction of the third water gap is provided on the third water gap.

9. The filter bowl with backwash function of claim 1 further comprising a drive module disposed outside the bowl, the drive module including one or more transfer pumps for transferring the first water stream into the first space during filtration, for backwashing the filter material with the second water stream during backwash and for causing the third water stream to form a rotating water stream over the filter material.

10. The filter bowl with backwash function of claim 9 further comprising a control device;

the control device is used for controlling the delivery pump to perform back flushing on the filter material from bottom to top in an intermittent mode.