WO2022198890A1

WO2022198890A1 - Novel regenerable filter element

Info

Publication number: WO2022198890A1
Application number: PCT/CN2021/112392
Authority: WO
Inventors: 何晟; 刘法军
Original assignee: 飞潮(上海)环境技术有限公司; 飞潮（无锡）过滤技术有限公司
Priority date: 2021-03-22
Filing date: 2021-08-13
Publication date: 2022-09-29
Also published as: CN112870795A

Abstract

The present invention provides a novel regenerable filter element, comprising: an inner frame, a filter bag sleeved outside the inner frame, a filter bag sealing ring connected to the filter bag, a fixed ring sleeved outside the filter bag sealing ring, a press cover, and a plurality of O-shaped rings. The O-shaped rings are jointly squeezed by the filter bag sealing ring and the fixed ring. The press cover and the fixed ring are connected so that the inner frame and the fixed ring jointly squeeze the filter bag sealing ring. The novel regenerable filter element provided by the present invention is flexible and convenient to disassemble and assemble, and further has a blowback effect. A filter cake outside the filter bag can be removed, so that the filter bag can be recycled. In addition, the O-shaped rings are arranged between the filter bag sealing ring and the fixed ring, thereby realizing a good sealing effect and preventing outward water seepage from a connecting gap.

Description

A new type of renewable filter element

technical field

The invention relates to the technical field of filter elements, in particular to a novel regenerable filter element.

Background technique

With the rapid development and application of advanced technology, people have higher and higher requirements for the cleanliness of fluids, especially in chemical, new energy, pharmaceutical, food and other industries. At present, most of the commonly used filters are bag filters and cartridge filters. These filters are far from meeting the application requirements in certain fields. The emergence of cluster filter tubes has broadened the application field of filter tubes. The cluster tube is usually composed of a filter bag for filtration, a liquid permeable pipe with liquid permeable holes, and a central pipe. The liquid to be filtered is filtered by the filter bag and enters the liquid permeable pipe through the liquid permeable hole, and gathers into the liquid collection cavity at the bottom of the cluster pipe with the direction of the liquid permeable pipe, and finally passes through the center pipe and the liquid outlet pipe connected with the center pipe. .

Regarding the cluster filter tube, the applicant has previously applied for several related patents, but in the actual use process, there is a problem that the cluster filter tube has the phenomenon of liquid penetration at the connection gap. Therefore, the applicant has researched and developed a A new type of regenerable filter element to solve this problem.

SUMMARY OF THE INVENTION

The purpose of the present invention is to disclose a new type of regenerable filter element, which is flexible and convenient to disassemble and assemble, and also has the effect of backflushing, which can remove the filter cake outside the filter bag, so that the filter bag can be regenerated and recycled. An O-ring is set between the fixing ring and the fixing ring, which plays a better sealing effect and prevents the phenomenon of water seepage from the connection gap.

In order to achieve the above purpose, the present invention provides a novel regenerable filter element, comprising an inner frame, a filter bag sleeved outside the inner frame, and a filter bag sealing ring connected to the filter bag, sleeved outside the filter bag sealing ring. The fixing ring, the gland, and several O-rings; the O-ring is co-extruded by the filter bag sealing ring and the fixing ring, and the gland and the fixing ring are connected so that the inner skeleton and the fixing ring co-extrude the filter bag sealing ring.

In some embodiments, the filter bag sealing ring is provided with a plurality of clamping grooves, and the O-ring is clamped in the clamping grooves.

In some embodiments, the inner frame includes at least one liquid-permeable pipe, a central pipe located inside the liquid-permeable pipe, and a spacer plate; the liquid-permeable pipe is provided with a number of liquid-permeable holes, and the spacer plate is connected to the liquid-permeable pipe. The top of the liquid pipe, the central pipe passes through and is connected to the spacer plate.

In some embodiments, the filter bag seal is formed with a laterally extending end, and the spacer plate end and the retaining ring coextrude the laterally extending end.

In some embodiments, a handle is provided on the partition plate, and the handle extends out of the gland.

In some embodiments, the gland is provided with an inner thread, the fixing ring is provided with an outer thread, and the inner thread and the outer thread are matched.

Compared with the prior art, the beneficial effects of the present invention are: the novel regenerable filter element provided by the present invention is flexible and convenient to assemble and disassemble, and also has the effect of backflushing, which can remove the filter cake outside the filter bag and make the filter bag regenerate and circulate. In addition, by arranging an O-ring between the filter bag sealing ring and the fixing ring, it has a good sealing effect and prevents the phenomenon of water seeping out of the connection gap.

Description of drawings

Fig. 1 is the structural representation of the novel renewable filter element shown in the present invention;

2 is a schematic diagram of the internal structure of the novel renewable filter element shown in the present invention;

FIG. 3 is an enlarged view of the numeral A in FIG. 2 .

Detailed ways

The present invention will be described in detail below with reference to the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments do not limit the present invention. Equivalent transformations or substitutions all fall within the protection scope of the present invention.

As shown in Figures 1-3, a new type of renewable filter element includes an inner frame, a filter bag 1 sleeved outside the inner frame, a filter bag sealing ring 11 connected to the filter bag 1, sleeved on the filter bag to seal The fixing ring 4 outside the ring 11, the gland 3, and the two O-rings 5.

The filter bag sealing ring 11 is provided with two clamping grooves 110, the O-ring 5 is clamped in the clamping grooves 110, and the structure is stable. The O-ring 5 is shared by the filter bag sealing ring 11 and the fixing ring 4. Squeeze, play the role of sealing and waterproofing, and prevent the connection gap from seeping out.

The inner frame includes a liquid permeable pipe 21 , a central pipe 22 located inside the liquid permeable pipe 21 , and a partition plate 23 . The liquid permeable pipe 21 is provided with a plurality of liquid permeable holes, the partition plate 23 is connected to the top of the liquid permeable pipe 21 , and the central pipe 22 passes through the partition plate 23 and is connected to the partition plate 23 .

The gland 3 and the fixing ring 4 are connected so that the inner frame and the fixing ring 4 can co-press the filter bag sealing ring 11 . The laterally extending end 111 is co-extruded with the retaining ring 4 to form a sealing structure.

The gland 3 is provided with an internal thread, the fixing ring 4 is provided with an external thread, and the internal thread and the external thread are matched. Through the connection of the gland 3 and the fixing ring 4, the spacer plate 23 is compressed, so that the spacer plate 23 and the fixing ring 4 press the filter bag sealing ring 11 more tightly.

The fixing ring 4 is connected and fixed with the container faceplate (not shown). The partition plate 23 is provided with a handle 24, and the handle 24 extends out of the pressure cover 3 for easy installation.

The bottom of the liquid permeable pipe 21 is a liquid collecting cavity, and the liquid inlet of the central pipe 22 is kept a certain distance from the liquid collecting cavity. The liquid penetrates the filter bag 1, and the clear liquid through the liquid permeable pipe 21 enters the inside of the liquid permeable pipe 21. The filtrate flows along the liquid permeable pipe 21 to the bottom of the liquid permeable pipe 21, and enters the liquid collection chamber. The clear liquid enters the liquid inlet of the central pipe 22. It enters and flows out from the liquid outlet of the central pipe 22. The liquid outlet of the central pipe 22 is connected with a clear liquid pipe, which can discharge clear liquid.

The upper end of the central pipe 22 can also be connected with a backflushing pipe, and gas can be fed into the central pipe 22 to backflush the filter bag 1 to remove the filter cake outside the filter bag 1, so that the filter bag 1 can be regenerated and recycled.

The series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Changes should all be included within the protection scope of the present invention.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

A new type of regenerable filter element is characterized in that it comprises an inner frame, a filter bag sleeved outside the inner frame, a filter bag sealing ring connected to the filter bag, a fixing ring sleeved outside the filter bag sealing ring, a pressure Cover, several O-rings; the O-rings are co-extruded by the filter bag sealing ring and the fixing ring, and the gland and the fixing ring are connected so that the inner frame and the fixing ring co-extrude the filter bag sealing ring.
The novel regenerable filter element according to claim 1, wherein the filter bag sealing ring is provided with a plurality of clamping grooves, and the O-ring is clamped in the clamping grooves.
The novel regenerable filter element according to claim 1, wherein the inner skeleton comprises at least one liquid-permeable pipe, a central pipe located inside the liquid-permeable pipe, and a partition plate; the liquid-permeable pipe is provided with several Liquid-permeable holes, the spacer plate is connected to the top of the liquid-permeable pipe, and the central pipe passes through the spacer plate and is connected to the spacer plate.
The novel regenerable filter element according to claim 3, wherein the filter bag sealing ring is formed with a laterally extending end, and the end of the spacer plate and the retaining ring co-extrude the laterally extending end.
The novel regenerable filter element according to claim 3, wherein a handle is provided on the partition plate, and the handle extends out of the gland.
The novel regenerable filter element according to claim 1, wherein the gland is provided with an inner thread, the fixing ring is provided with an outer thread, and the inner thread and the outer thread are matched.