CN217340358U

CN217340358U - Two-stage combined backwashing water filter

Info

Publication number: CN217340358U
Application number: CN202220512909.5U
Authority: CN
Inventors: 刘静一
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-09-02
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a two-stage combination backwashing water filter has solved the filterable problem of large granule impurity influence recoil, and its technical scheme main points are: the water filter device comprises a housin, be provided with essence filter core, coarse filter core, essence in the casing and strain back flush mechanism and coarse filtration back flush mechanism, essence is strained back flush mechanism and is included driving motor, axis of rotation, blow off pipe and clearance part, driving motor passes through the axis of rotation and is connected with clearance part, coarse filtration back flush mechanism includes the guide plate, the rotatable installation of guide plate has ensured that water filter can recoil smoothly, keeps equipment high efficiency to filter in the coarse filter core.

Description

Two-stage combined backwashing water filter

Technical Field

The utility model belongs to the technical field of filtration equipment, refer in particular to a two-stage combination self-cleaning water filter.

Background

The back washing filter is a precise device which directly intercepts impurities in water by using a filter screen, removes suspended matters and particles in the water body, reduces turbidity, purifies water, reduces the generation of system dirt, bacteria, algae, rust and the like, and purifies the water and protects other devices of the system to normally work.

However, the backwashing filter sometimes has faults in the automatic backwashing process, and the faults are mainly caused by that large-particle pollutants directly enter a fine filtering part of the filter, an automatic backwashing device is damaged, a suction nozzle is blocked, a drain valve is blocked, a cleaning brush is damaged and the like, so that the filter cannot continuously supply water, and production is stopped due to the need of shutdown maintenance.

Disclosure of Invention

The utility model aims at providing a simple structure and the effectual two-stage combination self-cleaning water filter who solves above-mentioned problem to the not enough of prior art existence.

The purpose of the utility model is realized like this: the utility model provides a two-stage combination self-cleaning water filter, includes the casing, be provided with the essence core in the casing, still be provided with coarse filter core, essence and strain back flush mechanism and coarse filter back flush mechanism in the casing, the essence is strained back flush mechanism and is included driving motor, axis of rotation, blow off pipe and clearance part, driving motor passes through the axis of rotation and is connected with clearance part, coarse filter back flush mechanism includes the guide plate, the guide plate is rotatable to be installed in the coarse filter core.

Furthermore, the guide plate is positioned on one side, close to the water inlet, of the rough filter element, the fine filter backwashing mechanism is communicated with a drain pipe, the drain pipe is provided with a first drain valve, the rough filter element is communicated with a drain outlet, and the drain outlet is provided with a second drain valve.

Further, the quantity of the fine filter cores is more than 2, the cleaning component is a suction nozzle, the suction nozzle is connected with the rotating shaft through a backwashing arm, the rotating shaft and the backwashing arm are of hollow structures, and the suction nozzle, the backwashing arm, the rotating shaft and the blow-off pipe are sequentially communicated.

Furthermore, the suction nozzle is positioned between the fine filter element and the coarse filter element and is close to the water inlet of the fine filter element.

Furthermore, the number of the fine filter cores is 1, the cleaning component is a cleaning brush located inside the fine filter cores, and the cleaning brush is connected with the driving motor through a rotating shaft.

Furthermore, the cleaning brushes are vertically distributed inside the fine filter element and are connected with the rotating shaft through connecting arms.

Furthermore, the interior of the fine filter element is communicated with a drain pipe.

Compared with the prior art, the utility model outstanding and profitable technological effect is: the utility model discloses an increase the coarse filter element in the fine filter element front end, can prevent that large granule impurity or filth from getting into the fine filter, cause the hindrance to the back flush of fine filter, reduce the fault rate with the filter part, increase the guide plate in the coarse filter element simultaneously, can realize the back flush to the coarse filter element;

the utility model discloses when carrying out the back flush, driving motor work drives the axis of rotation and the cleaning member is rotatory, open electronic blowoff valve simultaneously, because there is invariable pressure in the filter body, the conventionality is about 0.5Mpa, the drain pressure of blowoff valve is 0Mpa of atmospheric pressure, sewage flows in the back flush pipeline to the low pressure direction by high pressure under the pressure effect, discharge the pollutant from the blow off pipe, and simultaneously, the inside guide plate of coarse strainer core rotates to the closure state, utilize the inside pressure of filter, discharge the inside filth of coarse strainer from the drain, realize the synchronous back flush of fine filtration and coarse filtration two parts.

Drawings

Fig. 1 is a schematic structural diagram of the working state of embodiment 1 of the present invention;

FIG. 2 is a schematic structural diagram of a backwashing state of embodiment 1 of the present invention;

fig. 3 is a schematic structural view of the back-washing state of embodiment 2 of the present invention.

In the figure: 1. a housing; 2. fine filtering; 3. a drive motor; 4. a rotating shaft; 5. a suction nozzle; 6. a blow-off pipe; 7. a baffle; 8. coarse filtration core; 9. a first waste valve; 10. a second blowoff valve; 11. a backwashing arm; 12. cleaning a brush; 13. the connecting arm.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description, with reference to the drawings in the embodiments of the present invention, clearly and completely describes the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Example 1: the embodiment discloses a two-stage combined self-cleaning water filter, which comprises a shell 1, wherein a coarse filter and a fine filter are arranged in the shell 1, a coarse filter core 8 is arranged in the coarse filter and used for blocking large-particle pollutants (such as cleaning cloth, branches, hemp ropes, plastic bodies, rubber bodies, filiform metal or nonmetal objects and the like), a plurality of fine filter cores 2 are arranged in the fine filter and used for blocking small-particle pollutants, a fine filtering back-flushing mechanism and a coarse filtering back-flushing mechanism are also arranged in the shell 1, the fine filtering back-flushing mechanism comprises a driving motor 3, a rotating shaft 4 and a suction nozzle 5, the driving motor 3 is connected with the suction nozzle 5 through the rotating shaft 4, the suction nozzle 5 is connected with the rotating shaft 4 through a back-cleaning arm 11, the suction nozzle 5 is communicated with a drain pipe 6 through the rotating shaft 4, and the rotating shaft 4 and the back-cleaning arm 11 are of a hollow structure, the suction nozzle 5, the backwashing arm 11, the rotating shaft 4 and the sewage discharge pipe 6 are communicated in sequence.

In the embodiment, the suction nozzles 5 are positioned between the rough filter element 8 and each fine filter element 2, in the embodiment, 1 suction nozzle 5 is adopted, the suction nozzles 5 are close to the water inlet of the fine filter element 2, and the sewage discharge pipe 6 is positioned on the side surface of the shell 1.

The automatic backwashing filter is characterized in that a rotatable guide plate 7 is arranged in the coarse filter element 8, the guide plate 7 can be connected with a handle controlled manually and can also be controlled by a motor because the guide plate 7 is not used frequently, the guide plate 7 is positioned on one side, close to a water inlet, in the coarse filter element 8, the guide plate 7 can separate the coarse filter element from the water inlet through rotation, the coarse filter screen is flushed by using the pressure inside the filter, the drain pipe 6 is provided with a first drain valve 9, the coarse filter element 8 is communicated with a drain outlet, the drain outlet is provided with a second drain valve 10, wherein the first drain valve 9 can be an electromagnetic valve because of frequent use, and the second drain valve 10 can be a manual valve because of low use rate;

and simultaneously, the utility model discloses inside is provided with pressure differential signaling apparatus for respond to the pressure difference of 2 inside and outside essence filter cores, pressure differential signaling apparatus, first blowdown valve 9 and driving motor 3 are connected with the electric cabinet, and the electric cabinet is installed in 1 outsides of casing.

In the embodiment, during back flushing, when the fine filter element 2 is blocked or the water permeability rate is crossed, the differential pressure signal generator gives an alarm, the back flushing mechanism is started, the electric cabinet starts the speed reducer motor to work to drive the rotating shaft 4 to rotate, meanwhile, the first blow-off valve 9 is opened, back flushing is carried out by utilizing the pressure inside the filter, reference can be made to the attached drawing 2, wherein a black solid arrow indicates the flow direction of dirt, the suction nozzle 5 adsorbs and discharges the dirt generated in the back flushing process of the fine filter element 2 in the rotating process along with the rotating shaft 4, meanwhile, the guide plate 7 can be rotated according to the dirt adhesion condition in the coarse filter element 8, the second blow-off valve is opened, back flushing of the coarse filter element 8 is carried out, and the dirt in the coarse filter element 8 is guided out from the second blow-off valve 10 under the pressure effect.

Example 2:

the embodiment discloses a two-stage combined self-cleaning water filter, which comprises a shell 1, wherein a coarse filter and a fine filter are arranged in the shell 1, a coarse filter element 8 is arranged in the coarse filter and used for blocking large-particle pollutants, 1 fine filter element 2 is arranged in the fine filter and used for blocking small-particle pollutants, a fine filtering back-washing mechanism and a coarse filtering back-washing mechanism are further arranged in the shell 1, the fine filtering back-washing mechanism comprises a driving motor 3, a rotating shaft 4 and a cleaning brush 12, the cleaning brush 12 can be a stainless steel brush, and the driving motor 3 is connected with the cleaning brush 12 through the rotating shaft 4;

in this embodiment, the cleaning brush 12 is located inside the fine filter element 2, and the cleaning brush 12 is distributed inside the fine filter element 2 up and down, and the cleaning brush 12 is connected with the rotating shaft 4 through the connecting arm 13. Can clear up 2 insides of fine filter element, 2 insides of fine filter element communicate with blow off pipe 6, and blow off pipe 6 is located the casing top.

The novel filter is characterized in that a rotatable guide plate 7 is arranged in the coarse filter element 8, the guide plate 7 is not frequently used and can be connected with a handle controlled manually or controlled by a motor, the guide plate 7 is positioned on one side, close to a water inlet, of the coarse filter element 8, the guide plate 7 can separate the coarse filter element from the water inlet through rotation during backwashing, the coarse filter screen is flushed by using the pressure inside the filter, the drain pipe 6 is provided with a first drain valve 9, the coarse filter element 8 is communicated with a drain outlet, the drain outlet is provided with a second drain valve 10, the first drain valve 9 can be an electromagnetic valve due to frequent use, and the second drain valve 10 can be a manual valve due to low use rate;

In the embodiment, during back flushing, when the fine filter element 2 is blocked or the water permeability rate is crossed, the differential pressure signal generator gives an alarm, the back flushing mechanism is started, the electric cabinet starts the speed reducer motor to work to drive the rotating shaft 4 to rotate, the first blow-off valve 9 is opened at the same time, back flushing is performed by using the pressure inside the filter, reference can be made to the attached drawing 2, wherein a black solid arrow indicates the flow direction of dirt, the cleaning brush 12 can clean the dirt attached to the fine filter element 2 in the rotating process along with the rotating shaft 4, the dirt is discharged from the blow-off pipe 6 under the action of the pressure in the filter, meanwhile, the guide plate 7 can be rotated according to the dirt attachment condition in the coarse filter element 8, the second blow-off valve is opened to perform back flushing on the coarse filter element 8, and the dirt in the coarse filter element 8 is guided out from the second blow-off valve 10 under the action of the pressure.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Claims

1. The utility model provides a two-stage combination backwashing water filter, includes casing (1), be provided with essence filter core (2) in casing (1), its characterized in that, still be provided with coarse filter core (8), essence in casing (1) and strain back flush mechanism and coarse filtration back flush mechanism, the fine filtration back flush mechanism includes driving motor (3), axis of rotation (4), blow off pipe (6) and clearance part, driving motor (3) are connected with clearance part through axis of rotation (4), coarse filtration back flush mechanism includes guide plate (7), rotatable the installing in the coarse filter core of guide plate (7).

2. A two-stage combined backwashing water filter according to claim 1, wherein the guide plate (7) is located at one side of the coarse filter element (8) close to the water inlet, the fine filtering backwashing mechanism is communicated with a drain pipe (6), the drain pipe (6) is provided with a first drain valve (9), the coarse filter element (8) is communicated with a drain outlet, and the drain outlet is provided with a second drain valve (10).

3. The two-stage combined backwashing water filter of claim 2, wherein the number of the fine filter cores (2) is more than 2, the cleaning component is a suction nozzle (5), the suction nozzle (5) is connected with the rotating shaft (4) through a backwashing arm (11), the rotating shaft (4) and the backwashing arm (11) are of a hollow structure, and the suction nozzle (5), the backwashing arm (11), the rotating shaft (4) and the sewage discharge pipe (6) are sequentially communicated.

4. A two-stage combination backwash water filter according to claim 3 characterised in that the suction nozzle (5) is located between the fine filter element (2) and the coarse filter element (8) and that the suction nozzle (5) is located close to the water inlet of the fine filter element (2).

5. A two-stage combination backwash water filter according to claim 2, characterised in that the number of the fine filter elements (2) is 1, the cleaning element is a cleaning brush (12) located inside the fine filter elements (2), the cleaning brush (12) being connected to the drive motor (3) via a rotary shaft (4).

6. A two-stage combination backwash water filter according to claim 5 characterised in that the cleaning brushes (12) are distributed up and down inside the fine filter element (2), the cleaning brushes (12) being connected to the rotation shaft (4) by means of connecting arms (13).

7. A two-stage combination backwash water filter according to claim 6 characterised in that the fine filter element (2) is internally in communication with a drain (6).