CN111939614A - Filter element with automatic scrubbing function - Google Patents

Abstract

A filter element with automatic brushing function includes a filter element body in a cylindrical structure, a rotating shaft is installed inside the filter element body, a brush assembly and a driving fan blade assembly are sleeved on the rotating shaft, and the filter element body corresponds to the brush assembly. The position of the filter element is a folded structure, and the folded structure is composed of a plurality of conical cylinder segments in the middle of the filter element body, and the multiple conical cylinder segments are connected in sequence along the axial direction. The surfaces are all attached, and the driving fan blade assembly is located on the side of the brush assembly close to the direction of the backwashing water flow. The driving fan blade assembly is rotated by the backwashing water flow, so that the rotating shaft drives the brush assembly to rotate, so that the brush assembly The inner surface of the filter element body is brushed, so during the backwashing process, the filter element is not only washed by the water flow, but also directly brushed by the brush assembly, which greatly improves the decontamination effect of the backwashing on the filter element, and can meet the requirements of the backwashing filter. Requirements for prolonged use after automatic backwashing.

Description

A filter element with automatic brushing function

technical field

The invention relates to the field of filter element, in particular to a filter element with automatic brushing function.

Background technique

my country's water resources are relatively scarce. With the rapid economic development and the improvement of national environmental awareness, efficient water treatment equipment has been widely used in production and life. Automatic backwash filters are widely used in ballast water systems with their self-cleaning functions. , industrial and domestic wastewater treatment fields. The filter element plays a key role as the core filtering component of the automatic backwash filter. The existing candle plug-in filter element has insufficient backwashing and decontamination effect, and only relying on the filtered water to backwash the filter screen, filtering large particles is not easy to be backwashed. It will affect the backwashing effect of the automatic backwashing filter. After long-term use, dirt will accumulate on the filter element of the backwashing filter, so that the backwashing filter needs to be disassembled and cleaned frequently, and the backwashing filter cannot be passed through. Requirements for prolonged use after automatic backwashing.

SUMMARY OF THE INVENTION

In order to solve the problem of insufficient backwashing effect of the existing filter element, the present invention provides a filter element with automatic brushing function.

The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a filter element with automatic brushing function, comprising a filter element body in a cylindrical structure, and a rotating shaft is installed inside the filter element body through two bearing seats, which rotates The axis of the shaft coincides with the axis of the filter element body, the brush assembly and the drive fan blade assembly are sleeved on the rotating shaft, and the position corresponding to the brush assembly on the filter element body is a folded structure, and the folded structure is formed by the middle of the filter element body. It is composed of a plurality of conical cylinder segments, which are connected in sequence along the axial direction, and the directions of the opening of the large end to the opening of the small end of two adjacent segments of the conical cylinder segment are opposite, so that the cross-section of the multiple conical cylinder segments along the radial direction of the filter element body It is in a zigzag shape, the outer peripheral surface of the brush assembly is in contact with the inner surfaces of the plurality of conical cylinder segments on the filter element body, and the driving fan blade assembly is located on the side of the brush assembly close to the direction of the backwashing water flow, and the driving fan blade assembly is driven by the backwashing water flow. The fan blade assembly rotates, so that the rotating shaft drives the brush assembly to rotate, so that the brush assembly can brush the filter element body.

Preferably, the bearing seat is a hollow cross-shaped member, and the four ends of the cross are connected to the filter element body.

Preferably, one end of the rotating shaft is screwed with a locking nut for restricting the axial displacement of the driving fan blade assembly.

Preferably, all the conical cylindrical sections are equal in size, and two adjacent conical cylindrical sections are arranged symmetrically.

According to the above-mentioned technical scheme, the beneficial effects of the present invention are:

In the filter element with automatic brushing function provided by the present invention, by adding a brush assembly and a driving fan blade assembly inside the filter element, the filter element can drive the brush assembly to rotate through the driving fan blade assembly during backwashing, and the brush assembly is The inner surface of the filter element body can be brushed, so during the backwashing process, the filter element is not only washed by the water flow, but also directly brushed by the brush assembly, which greatly improves the decontamination effect of the backwashing on the filter element and can meet the requirements of backwashing filtration. long-term use after automatic backwashing. The position of the filter element body corresponding to the brush assembly is in a folded structure, which is convenient to adjust the flow area of the filter element body. When the flow rate of the filter element needs to be increased or decreased, it is only necessary to change the conical surface and The angle between the axes of the filter element body can change the flow area of the filter element body to adapt to different flow requirements. The brush components can be made of different materials according to the material of the filter element to achieve the purpose of adapting to the corresponding working conditions. The drive fan blade assembly can use different angles of fan blades, that is, different angles of fan blades are used according to different types of filter elements, so as to improve the backwashing effect.

Description of drawings

Fig. 1 is the structural representation of the present invention;

2 is a cross-sectional view of a drive fan blade assembly;

Figure 3 is a cross-sectional view of the bearing housing.

Marked in the figure: 1. Filter element body, 101, Conical cylinder section, 2. Rotating shaft, 3. Bearing seat, 4. Brush assembly, 5. Drive fan blade assembly, 6. Lock nut.

Detailed ways

Referring to the accompanying drawings, the specific embodiments are as follows:

A filter element with automatic brushing function includes a filter element body 1 in a cylindrical structure, and a rotating shaft 2 is mounted on the inner side of the filter element body 1 through two bearing seats 3. As shown in Figure 3, the bearing seat 3 is hollow The four ends of the cross-shaped member are all connected with the filter element body 1 , so that the bearing seat 3 will not affect the flow of the backwash water inside the filter element body 1 . The axis of the rotating shaft 2 coincides with the axis of the filter element body 1, the brush assembly 4 and the driving fan blade assembly 5 are sleeved on the rotating shaft 2, and one end of the rotating shaft 2 is screwed with a screw for limiting the axial displacement of the driving fan blade assembly 5. Lock nut 6.

As shown in FIG. 1 , the position on the filter element body 1 corresponding to the brush assembly 4 is in a folded structure, and the folded structure is composed of a plurality of conical cylindrical sections 101 in the middle of the filter element body 1 , and the plurality of conical cylindrical sections 101 are arranged in sequence in the axial direction. Connected, the directions of the opening of the large end to the opening of the small end of the two adjacent conical cylinder segments 101 are opposite, so that the cross-section of the plurality of conical cylinder segments 101 along the radial direction of the filter element body 1 is zigzag, and the outer peripheral surface of the brush assembly 4 is connected to the filter element. The inner surfaces of the plurality of conical cylinder segments 101 on the body 1 are all fitted, and the driving fan blade assembly 5 is located on the side of the brush assembly 4 close to the direction of the backwash water flow, and the driving fan blade assembly 5 is rotated by the backwash water flow, so that the The rotating shaft 2 drives the brush assembly 4 to rotate, so that the brush assembly 4 can brush the inner surface of the filter element body 1 .

During backwashing in this embodiment, the filter element body 1 is not only washed by the water flow, but also directly brushed by the brush assembly 4, which greatly improves the decontamination effect of the backwashing on the filter element, and can satisfy the requirements of the backwashing filter after automatic backwashing. Requirements for prolonged use after rinsing. The position of the filter element body 1 corresponding to the brush assembly 4 is in a folded structure, which is convenient to adjust the flow area of the filter element body 1. When the flow rate of the filter element needs to be increased or decreased, it is only necessary to change the conical cylinder section 101 in the folded structure. The angle between the cone surface of the filter element body 1 and the axis of the filter element body 1 can change the flow area of the filter element body 1 to adapt to different flow requirements. The brush assembly 4 can choose different materials according to the different materials of the filter element body 1, so as to achieve the purpose of adapting to the corresponding working conditions. The driving fan blade assembly 5 can adopt fan blades with different angles, that is, according to different types of filter elements, fan blades with different angles can be used to improve the backwashing effect.

Claims (4)

1. A filter element with automatic brushing function, comprising a filter element body (1) having a cylindrical structure, characterized in that: a rotating shaft ( 2), the axis of the rotating shaft (2) coincides with the axis of the filter element body (1), the brush assembly (4) and the driving fan blade assembly (5) are sleeved on the rotating shaft (2), and the filter element body (1) is The position corresponding to the brush assembly (4) is a folded structure, and the folded structure is composed of a plurality of conical cylindrical sections (101) in the middle of the filter element body (1), and the plurality of conical cylindrical sections (101) are arranged in sequence in the axial direction connected, the directions of the opening of the large end to the opening of the small end of the two adjacent conical cylinder segments (101) are opposite, so that the cross-section of the plurality of conical cylinder segments (101) along the radial direction of the filter element body (1) is zigzag, and the brush assembly The outer peripheral surface of (4) is in contact with the inner surfaces of the plurality of conical cylinder segments (101) on the filter element body (1). On the side, the driving fan blade assembly (5) is rotated by the backwash water flow, so that the rotating shaft (2) drives the brush assembly (4) to rotate, so that the brush assembly (4) can brush the filter element body (1). 2 . The filter element with automatic brushing function according to claim 1 , wherein the bearing seat ( 3 ) is a hollow cross-shaped member, and the four ends of the cross are connected to the filter element body ( 1 ). 3 . . 3. A filter element with automatic brushing function according to claim 1, characterized in that: one end of the rotating shaft (2) is screwed with a lock for restricting the axial displacement of the driving fan blade assembly (5). Tighten the nut (6). 4. The filter element with automatic brushing function according to claim 1, characterized in that: all the conical cylindrical sections (101) are of equal size, and two adjacent conical cylindrical sections (101) are symmetrically arranged.

Images