CN218076995U

CN218076995U - High-precision filter cylinder

Info

Publication number: CN218076995U
Application number: CN202221535645.1U
Authority: CN
Inventors: 杨泽林; 卢永红
Original assignee: Shanghai Lansen Filter Material Technology Co ltd
Current assignee: Shanghai Lansen Filter Material Technology Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-12-20
Anticipated expiration: 2032-06-17

Abstract

The utility model relates to a high-precision filter cylinder, which comprises a filter cylinder main body, an upper end cover arranged at the top of the filter cylinder main body and a lower end cover arranged at the bottom of the filter cylinder main body; the filter cylinder main body comprises a mesh cylinder framework and a filter material sleeved outside the mesh cylinder framework, the edge interface of the filter material is connected by sewing, and a V-shaped pressing strip is pressed at the sewing position; the filter material comprises a filter material base layer and a PTFE membrane layer covering the outer surface of the filter material base layer. The utility model discloses can avoid filter material edge kneck to appear oozing the ash, leak the ash condition, guarantee to strain the high accuracy filtration effect of a section of thick bamboo.

Description

High-precision filter cylinder

Technical Field

The utility model belongs to the technical field of filtration, concretely relates to high accuracy is strained a section of thick bamboo.

Background

With the continuous development of human industrial modernization, industrialization brings a large amount of industrial dust, which not only pollutes production workshops, but also seriously pollutes local ecological environment, so that a large amount of harmful dust gas must be filtered and purified by a dust remover before being discharged. At present, most of dust collectors in the market use bag dust collectors and filter cartridge dust collectors. Because the filter drum dust remover occupies a small area, has high filtering efficiency and low one-time investment, the filter drum is designed in an integrated way, and is more convenient to install and replace, the filter drum dust remover can meet the requirements of users, and the trend of replacing a cloth bag dust remover is realized.

The filter cartridge is a core part of the filter cartridge dust remover and is a heart of a filter system, and the filtering efficiency and the filtering precision are completely dependent on a filter element part of the filter cartridge. The filter cylinder comprises a mesh cylinder framework, a filter material sleeved outside the mesh cylinder framework and an end cover used for fixing the mesh cylinder framework and the filter material.

The edge connectors of the existing filter materials are generally connected in a glue bonding mode, an ultrasonic welding mode and a sewing mode, wherein the glue bonding mode is long in time consumption, not high in temperature resistance and poor in strength, the ultrasonic welding mode is also prone to layered fracture, and the ultrasonic welding mode is not suitable for individual thermosetting materials, so that most of the filter materials are connected and fixed in the sewing mode, the filter materials are simple and fast, and the filter materials are suitable for various materials. However, the filter material sewn and connected also has the disadvantages that gaps and pinholes are left at the edge interface, so that the conditions of ash seepage and ash leakage are easily caused, and the filtering effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high accuracy is strained a section of thick bamboo to the solution is strained a poor problem of filter effect.

The utility model discloses a high accuracy is strained a section of thick bamboo and is realized like this:

a high-precision filter cylinder comprises a filter cylinder body, an upper end cover arranged at the top of the filter cylinder body and a lower end cover arranged at the bottom of the filter cylinder body;

the filter cylinder main body comprises a mesh cylinder framework and a filter material sleeved outside the mesh cylinder framework, the edge interface of the filter material is connected by sewing, and a V-shaped pressing strip is pressed at the sewing position;

the filter material comprises a filter material base layer and a PTFE (polytetrafluoroethylene) film layer covering the outer surface of the filter material base layer.

Furthermore, the filter material is provided with a plurality of folds along the circumferential direction.

Furthermore, the opening of the V-shaped pressing strip is inwards wrapped at the sewing position of the edge interface of the filter material.

Furthermore, the V-shaped pressing strip is made of stainless steel.

Furthermore, the net drum framework is formed by spirally rolling the net plate.

Furthermore, the upper end of the filter cylinder main body is fixed in the upper end cover through glue, and the lower end of the filter cylinder main body is fixed in the lower end cover through glue.

Further, the exterior of the filter cartridge body is wrapped with a strap.

Furthermore, an annular rubber sealing strip is arranged at the top of the upper end cover.

After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:

(1) The utility model can effectively seal the gap and the pin hole at the edge interface because the V-shaped pressing strip is pressed at the sewing position, thereby avoiding the situations of ash infiltration and ash leakage and ensuring the filtering effect;

(2) The utility model discloses because the surface tectorial membrane at filter media basic unit has the PTFE rete, not only can prevent the dust to get into filter media basic unit inside, avoid causing its wearing and tearing, but also can increase the smoothness of filter media surface, the deashing is convenient, has further guaranteed the filter effect, has improved filtration efficiency.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of a high-precision filter cartridge according to a preferred embodiment of the present invention;

FIG. 2 is a top view of a high precision filter cartridge according to a preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view of a preferred embodiment of the present invention at the filter media edge interface of a high precision filter cartridge;

FIG. 4 is a block diagram of the V-shaped bead of a preferred embodiment of the present invention;

FIG. 5 is a layered structure diagram of the filter material of the high precision filter cartridge of the preferred embodiment of the present invention;

FIG. 6 is a block diagram of the upper end cap of a high precision filter cartridge according to a preferred embodiment of the present invention;

in the figure: the filter cartridge comprises a filter cartridge body 1, an upper end cover 2, a lower end cover 3, a mesh cartridge framework 4, a filter material 5, a V-shaped pressing strip 6, a filter material base layer 7, a PTFE membrane layer 8, an annular groove 9, a binding belt 10, an air outlet 11 and a rubber sealing strip 12.

Detailed Description

To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 6, a high-precision filter cartridge comprises a filter cartridge body 1, an upper end cap 2 mounted on the top of the filter cartridge body 1, and a lower end cap 3 mounted on the bottom of the filter cartridge body 1; the filter cylinder body 1 comprises a mesh cylinder framework 4 and a filter material 5 sleeved outside the mesh cylinder framework 4, the edge interface of the filter material 5 is connected by sewing, and a V-shaped pressing strip 6 is pressed at the sewing position; the filter material 5 comprises a filter material base layer 7 and a PTFE membrane layer 8 coated on the outer surface of the filter material base layer 7.

In order to increase the filtering area of the filtering material 5 and improve the filtering efficiency, the filtering material 5 is provided with a plurality of folds along the circumferential direction.

Filter material 5 of fold formula stacks both sides edge and sews up together at first when connecting its both sides edge, can leave the gap between the edge of both sides this moment, sews up the in-process sewing needle moreover and can leave the pinhole at edge kneck, in order to shelter from gap and pinhole through V type layering 6, avoids appearing oozing the ash, leaking the condition of ash, 6 openings of V type layering are wrapped up the department of sewing up at 5 edge interfaces of filter material inwards.

After sewing, the V-shaped pressing strip 6 covers the edge interface, and then is fixed with the filter material 5 in a stamping mode.

In order to ensure the corrosion resistance of the filter cartridge, the V-shaped pressing strip 6 is made of stainless steel.

In order to increase the structural stability of the net drum framework 4, the net drum framework 4 is formed by spirally rolling a net plate.

Specifically, two adjacent circles of net plates are buckled together through the edges of the net plates, so that the structural strength of the net drum framework 4 and the whole filter drum is ensured.

In order to fix the filter cartridge body 1 with the upper end cover 2 and the lower end cover 3, the upper end of the filter cartridge body 1 is fixed in the upper end cover 2 by glue, and the lower end is fixed in the lower end cover 3 by glue.

Specifically, the upper end cover 2 is of an annular structure, the bottom of the upper end cover is provided with an annular groove 9, glue is poured into the annular groove 9, then the upper end of the filter cartridge body 1 is installed into the annular groove 9, and the upper end cover 2 is fixed to the top of the filter cartridge body 1 through the glue.

The lower end cover 3 is of a disc-shaped structure with an upward opening, glue is poured into the lower end cover 3, then the lower end of the filter cylinder body 1 is placed into the disc, and the lower end cover 3 can be fixed at the bottom of the filter cylinder body 1 through the glue to seal the lower end of the filter cylinder body 1.

To increase the stability of filter media 5, the exterior of cartridge body 1 is wrapped with straps 10.

In order to ensure the sealing performance after the filter cartridge is installed and ensure the filtering effect, the top of the upper end cover 2 is provided with an annular rubber sealing strip 12.

When the filter cylinder is manufactured, firstly, the filter material 5 coated with the membrane is folded into a fold structure according to the set fold height and fold number, the edge connector of the filter material 5 is sewn by using a double-needle sewing machine, and then the V-shaped pressing strip 6 is punched at the sewing position of the edge connector to shield gaps and pinholes. At the moment, the net drum framework 4 is stuffed into the filter material 5 to form the filter drum body 1, the upper end cover 2 and the lower end cover 3 are fixed at two ends of the filter drum body 1 by glue, finally, the binding bands 10 are bound outside the filter material 5, and the surface of the upper end cover 2 is stuck with the rubber sealing strip 12.

When the dust filter is used, the filter cylinder is arranged in the filter cylinder filter, wherein the filter cylinder is positioned in the dust removal chamber, the exhaust port 11 positioned at the center of the upper end cover 2 at the top of the filter cylinder is communicated with the air purification chamber, dust-containing gas entering the dust removal chamber enters the mesh cylinder framework 4 through the filtering of the filter material 5, and dust is left in the dust removal chamber when passing through the filter material 5, namely, the dust covers the outer surface of the filter material 5 and falls into the ash hopper at the bottom of the dust removal chamber. The filtered clean gas enters the air purifying chamber through the exhaust port 11 and then is discharged out of the filter cartridge filter, and the air purification can be completed.

In addition, the existing filter material 5 generally adopts a polyester spunbonded hot rolled cloth, a needle-punched or water-side non-woven fabric filter material such as PET (polyester fiber), PPS (polyphenylene sulfide fiber), aramid fiber (meta-aramid fiber), PI (polyimide fiber) and the like, the material can only filter dust above 5um, and PM2.5 even finer dust can not be intercepted and filtered.

Consequently, cover one deck PTFE rete 8 on the surface of filter media basic unit 7 in utility model, it has following advantage:

(1) the service life is long: firstly, the PTFE membrane layer 8 can effectively prevent dust particles from permeating into the deep layer of the filter material 5, and abrasion of the filter material 5 is avoided, so that the filter material 5 is in a clean state for a long time, and the service life of the filter material 5 is prolonged. Secondly, because PTFE rete 8 has increased the smoothness on filter material 5 surface to pulse pressure during the deashing can be reduced, the mechanical damage of compressed air to filter material 5 during the deashing has been reduced, further its life is prolonged.

Thirdly, the pressure drop is another point influencing the service life of the filter cylinder, the dust cannot enter the deep layer of the filter material 5 due to the PTFE film layer 8, so that the filter material 5 can always keep constant air permeability in the using process, the constant air volume of the system is ensured, the service life of the filter cylinder is further prolonged, and the cost for replacing the filter cylinder is reduced.

(2) Low emission: for particles below 0.5um in diameter, the PTFE membrane layer 8 can achieve 99.995% interception. Through cover one deck PTFE rete 8 at filter media basic unit 7 surface, can realize ultralow emission, should discharge and accord with current environmental protection emission standard completely, realize the high-efficient protection to the environment.

(3) The productivity is improved: the filter material with the PTFE film layer 8 can additionally improve the air volume by 12 to 20 percent without any great change of a dust collector system. Because the accumulated dust on the surface of the filter material is less during dust removal, the dust removal effect is good, the pressure drop generated by the filter material is greatly reduced, the fan can operate at different working points of the curve of the fan, the flow of the system is increased, the treated air volume of the dust remover can reach or even exceed the design level, the ventilation and dust removal functions of the dust remover are effectively exerted, the stable, feasible and safe operation of the whole system is ensured, and the production yield and the production benefit can be greatly improved in a production system.

(4) The energy consumption is low: due to the high filtering quality of the filter material and the excellent dust cleaning effect, the filtering pressure drop is greatly reduced, the pressure difference of the filter cylinder during the whole service period can be always stabilized at a lower level, and the air volume is always stabilized at a higher level. The device can greatly save the consumption of compressed air used for blowing by a dust remover of a user and also greatly save the unit yield operation energy consumption of a system fan and other related equipment.

(5) The restorability is good. The PTFE membrane layer 8 is hydrophobic, i.e., water vapor cannot penetrate into the deep layer of the filter, which allows the filter to adapt to high humidity conditions (e.g., when the system sprays excessive water), and also achieves high dust removal. Because the PTFE membrane layer 8 intercepts dust on the surface, the wet powder cake can not be attached to the fibers of the filter material base layer 7 during condensation. When the temperature is again raised, the dry cake is more easily removed from the smooth PTFE membrane layer 8 than from the rough surface of the needle punched or spunlaced felt.

The utility model discloses a setting of V type layering 6 can avoid filter media kneck to ooze the condition of ash, ash leakage, guarantees to strain the high accuracy filtration effect of a section of thick bamboo.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A high-precision filter cartridge is characterized by comprising a filter cartridge body (1), an upper end cover (2) arranged at the top of the filter cartridge body (1) and a lower end cover (3) arranged at the bottom of the filter cartridge body (1);

the filter cylinder main body (1) comprises a mesh cylinder framework (4) and a filter material (5) sleeved outside the mesh cylinder framework (4), the edge interface of the filter material (5) is connected in a sewing mode, and a V-shaped pressing strip (6) is arranged at the sewing position in a pressing mode;

the filter material (5) comprises a filter material base layer (7) and a PTFE (polytetrafluoroethylene) film layer (8) covering the outer surface of the filter material base layer (7).

2. A high-precision filter cartridge as claimed in claim 1, characterised in that the filter material (5) is provided with a number of folds in its circumferential direction.

3. A high-precision filter cylinder according to claim 1, characterized in that the V-shaped bead (6) is wrapped inwards at the seam of the edge interface of the filter material (5).

4. A high precision filter cartridge according to claim 1, characterized in that the V-shaped bead (6) is of stainless steel.

5. A high precision filter cartridge according to claim 1, characterized in that the mesh drum skeleton (4) is formed by spirally winding a mesh plate.

6. High precision filter cartridge according to claim 1, characterized in that the upper end of the cartridge body (1) is fixed in the upper end cap (2) by means of glue and the lower end is fixed in the lower end cap (3) by means of glue.

7. High precision filter cartridge according to claim 1, characterized in that the outside of the cartridge body (1) is wrapped with a strap (10).

8. A high precision filter cartridge according to claim 1, characterized in that the top of the upper end cap (2) is provided with an annular rubber sealing strip (12).