CN214714749U

CN214714749U - Large-flow filter

Info

Publication number: CN214714749U
Application number: CN202023113997.1U
Authority: CN
Inventors: 张顺新; 陈汝家; 张瑞
Original assignee: Xinxiang City Exquisite Electromechanical Equipment Engineering Co ltd
Current assignee: Xinxiang City Exquisite Electromechanical Equipment Engineering Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-11-16
Anticipated expiration: 2030-12-22

Abstract

The utility model provides a large-traffic filter, including upper end open-ended casing, be provided with the medium import on the casing, the upper end of casing is provided with the end cover, be provided with a plurality of medium export on the end cover, be provided with the bypass valve in the end cover, be provided with bypass import and a plurality of bypass export on the bypass valve, bypass export communicates with each other with the medium export, be provided with filter element group spare in the casing, filter element group spare includes the end plate, the upper end of end plate has set gradually first cartridge filter to the interior interval from outside, second cartridge filter and third cartridge filter, communicate with each other with the medium export between first cartridge filter and the second cartridge filter, be provided with a plurality of on the end plate between second cartridge filter and the third cartridge filter and filter the import, communicate with each other with the bypass import in the third cartridge filter. The utility model discloses a two filtration passageways filter simultaneously, have increased filter area, are applicable to large-traffic filtration, through filtering import and the cooperation of third cartridge filter, avoid the medium to directly discharge unfiltered.

Description

Large-flow filter

Technical Field

The utility model relates to the technical field of filters, especially indicate a large-traffic filter.

Background

The filter is usually used for the filtration of media such as hydraulic oil, water, gas, and current filter is mostly the single channel and filters, and filter area is limited, is not suitable for the filtration of large-traffic medium, and along with the use of filter, the filter screen can cause the jam usually, influences the filtration of medium, and the filtration flow reduces, can't satisfy the in service behavior to the large-traffic requirement of filter medium, and current filter that has the bypass valve, when pressure differential reached a definite value, the bypass valve was opened, but has the direct exhaust problem of medium unfiltered.

SUMMERY OF THE UTILITY MODEL

The utility model provides a large-traffic filter has realized that two filtration passageways filter simultaneously, has increased filter area, is applicable to large-traffic filtration, through filtering import and the cooperation of third cartridge filter, avoids the medium to directly discharge without filtering.

The technical scheme of the utility model is realized like this: the utility model provides a large-traffic filter, which comprises a housin, be provided with the medium import on the casing, the upper end of casing is provided with the end cover, be provided with a plurality of medium export on the end cover, be provided with the bypass valve in the end cover, be provided with bypass import and a plurality of bypass export on the bypass valve, bypass export communicates with each other with the medium export, be provided with filter element group spare in the casing, filter element group spare includes the end plate, the upper end of end plate has set gradually first cartridge filter from outside to inside at an interval, second cartridge filter and third cartridge filter, communicate with each other with the medium export between first cartridge filter and the second cartridge filter, be provided with a plurality of on the end plate between second cartridge filter and the third cartridge filter and filter the import, communicate with each other with the bypass import in the third cartridge filter.

Furthermore, a bypass inlet is formed in the lower end of the bypass valve, a supporting cylinder is arranged in the third filter cylinder, the lower end of the supporting cylinder is connected with the end plate, the upper end of the supporting cylinder is connected with the bypass inlet, a plurality of communicating holes are formed in the supporting cylinder, and the third filter cylinder is communicated with the bypass inlet through the communicating holes.

Furthermore, the bypass valve comprises a valve body, a valve groove is axially arranged in the valve body, a guide rod is fixed in the valve groove, a movable sleeve is slidably sleeved at the free end of the guide rod, a spring is arranged in the movable sleeve, one end of the spring abuts against the bottom of the movable sleeve, the other end of the spring is sleeved on the guide rod, and the other end of the spring abuts against the fixed end of the guide rod.

Furthermore, the bypass outlet is positioned on one side of the movable sleeve close to the fixed end of the guide rod, the bypass inlet is positioned below the movable sleeve, and the movable sleeve corresponding to the bypass inlet is provided with an annular pushing groove.

Furthermore, the upper end of the first filter cylinder is connected with the inner wall of the end cover in a sealing mode, and the upper ends of the second filter cylinder and the third filter cylinder are connected with the lower end of the valve body in a sealing mode.

Furthermore, the lower extreme of first cartridge filter, second cartridge filter and third cartridge filter is met with the upper end seal of end plate, filters the import and follows the circumference equipartition on the end plate.

The utility model has the advantages that:

the utility model realizes the simultaneous filtration of two filtration channels through the cooperation of the first filtration cylinder and the filtration inlet and the second filtration cylinder, increases the filtration area, is suitable for large-flow filtration, reduces the workload of a single multi-filtration cylinder, and prolongs the service life of the filtration cylinder; when the first filter cylinder and the second filter cylinder are blocked, the medium is filtered by the third filter cylinder and then discharged through the bypass valve and the medium outlet, so that the medium is prevented from being directly discharged without being filtered; and the whole structure is simple, and the assembly is convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of a high flow filter;

FIG. 3 is a schematic view of the bypass valve;

fig. 4 is a schematic structural view of the end plate.

The filter comprises a shell 1, a medium inlet 2, an end cover 3, a bypass inlet 4, a medium outlet 5, a bypass outlet 6, an end plate 7, a first filter cylinder 8, a second filter cylinder 9, a third filter cylinder 10, a first mounting groove 11, a second sealing ring 12, a filter inlet 13, a support cylinder 14, a third sealing ring 15, a communication hole 16, a valve body 17, a valve groove 18, a guide rod 19, a movable sleeve 20, a spring 21, a second mounting groove 22, a third mounting groove 23, a fourth sealing ring 24 and an annular push groove 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Example one

As shown in fig. 1 and 2, a large flow filter comprises a casing 1 with an opening at the upper end, a media inlet 2 is arranged on the side wall of the casing 1, an end cover 3 is connected with the upper end of the casing 1 by screw threads, a first sealing ring is fixed at the screw thread connection, 3 media outlets 5 are arranged on the end cover 3, a bypass valve is connected in the end cover 3, a bypass inlet 4 and a plurality of bypass outlets 6 are arranged on the bypass valve, the bypass outlets 6 are communicated with the media outlets 5, a filter element assembly is arranged in the casing 1, the filter element assembly comprises an end plate 7, a first filter cylinder 8, a second filter cylinder 9 and a third filter cylinder 10 are sequentially arranged at the upper end of the end plate 7 from outside to inside at intervals, first mounting grooves 11 corresponding to the first filter cylinder 8, the second filter cylinder 9 and the third filter cylinder 10 one by one are arranged at the upper end of the end plate 7 from outside to inside, second sealing rings 12 are fixed in the first mounting grooves 11, the lower ends of the first filter cartridge 8, the second filter cartridge 9 and the third filter cartridge 10 are arranged in the corresponding first mounting grooves 11 and are connected with the end cover 3 in a sealing way through a second sealing ring 12.

The first filter cartridge 8 and the second filter cartridge 9 are communicated with the medium outlet 5, a plurality of filter inlets 13 are arranged on the end plate 7 between the second filter cartridge 9 and the third filter cartridge 10, the filter inlets 13 are uniformly distributed on the end plate 7 along the circumferential direction, the second filter cartridge 9 and the third filter cartridge 10 are communicated with the medium inlet 2 through the filter inlets 13, and the third filter cartridge 10 is communicated with the bypass inlet 4.

The application method of the embodiment comprises the following steps: the medium enters the shell 1 through the medium inlet 2, and a part of the medium enters between the first filter cylinder 8 and the second filter cylinder 9 after being filtered by the first filter cylinder 8 and then is discharged through the medium outlet 5 of the end cover 3; a part of the medium enters between the second filter cylinder 9 and the third filter cylinder 10 through the filter inlet 13, enters between the first filter cylinder 8 and the second filter cylinder 9 through the second filter cylinder 9 after being filtered, and then is discharged through the medium outlet 5 of the end cover 3; if the first filter cartridge 8 and the second filter cartridge 9 are blocked, the medium enters between the second filter cartridge 9 and the third filter cartridge 10 through the filter inlet 13, is filtered by the third filter cartridge 10 and then enters the bypass valve through the bypass inlet 4, and due to the blockage of the first filter cartridge 8 and the second filter cartridge 9, a pressure difference is formed in the bypass valve, when the pressure difference reaches a set value, the bypass valve is opened, and the medium is discharged through the bypass outlet 6 and the medium outlet 5.

Example two

This embodiment is substantially the same as the first embodiment, except that: as shown in fig. 2, the bypass inlet 4 is disposed at the lower end of the bypass valve, a support cylinder 14 is disposed in the third filter cylinder 10, the lower end of the support cylinder 14 is connected to the end plate 7 by a screw thread, a third seal ring 15 is disposed at the screw thread connection position, the upper end of the support cylinder 14 is connected to the bypass inlet 4 by a screw thread, a plurality of communication holes 16 are disposed on the support cylinder 14, the four communication holes 16 are symmetrically distributed at two sides of the support cylinder 14, the lower end of the support cylinder 14 is a closed end, the upper end of the support cylinder is communicated with the bypass inlet 4, and the third filter cylinder 10 and the support cylinder 14 are communicated with the bypass inlet 4 through the communication holes 16.

The support cylinder 14 serves to support and connect the filter assembly, ensuring that the lower end of the end plate 7 is spaced from the bottom of the housing 1 to facilitate the passage of media through the filter inlet 13 into the filter assembly. If the first filter cartridge 8 and the second filter cartridge 9 are blocked, the medium enters between the second filter cartridge 9 and the third filter cartridge 10 through the filter inlet 13, enters between the third filter cartridge 10 and the support cartridge 14 after being filtered by the third filter cartridge 10, then enters into the support cartridge 14 through the communication hole 16, and finally enters into the bypass valve through the bypass inlet 4.

EXAMPLE III

This embodiment is substantially the same as the second embodiment, except that: as shown in fig. 2, 3 and 4, the bypass valve includes a valve body 17, and a valve spool 18 is provided in the valve body 17 in the axial direction. A guide rod 19 is fixed in the valve groove 18 through internal threads, a movable sleeve 20 is slidably sleeved at the free end of the guide rod 19, a spring 21 is arranged in the movable sleeve 20, one end of the spring 21 abuts against the bottom of the movable sleeve 20, and the other end of the spring is sleeved on the guide rod 19 and abuts against the fixed end of the guide rod 19.

The upper end of the first filter cylinder 8 is connected with the inner wall of the end cover 3 in a sealing manner, the upper ends of the second filter cylinder 9 and the third filter cylinder 10 are connected with the lower end of the valve body 17 in a sealing manner, the inner wall of the end cover 3 is provided with a second mounting groove 22 corresponding to the first filter cylinder 8, the lower end of the valve body 17 is provided with third mounting grooves 23 corresponding to the second filter cylinder 9 and the third filter cylinder 10 one by one from outside to inside, fourth sealing rings 24 are fixed in the first mounting groove 11 and the third mounting grooves 23, and sealing is realized through the fourth sealing rings 24.

The bypass inlet 4 and the bypass outlet 6 are both communicated with the valve groove 18, the bypass outlet 6 is positioned on one side of the movable sleeve 20 close to the fixed end of the guide rod 19, the bypass inlet 4 is positioned below the movable sleeve 20, and the movable sleeve 20 corresponding to the bypass inlet 4 is provided with an annular push groove 25. After the medium enters the valve body 17 through the bypass inlet 4, the movable sleeve 20 is pushed to move along the guide rod 19 through the annular push groove 25, meanwhile, the spring 21 is compressed, and when the annular push groove 25 is communicated with the bypass outlet 6, the medium is discharged through the bypass outlet 6 and the medium outlet 5.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a large-traffic filter, includes casing (1), is provided with medium import (2) on casing (1), and the upper end of casing (1) is provided with end cover (3), is provided with a plurality of medium export (5) on end cover (3), its characterized in that: be provided with the bypass valve in end cover (3), be provided with bypass import (4) and a plurality of bypass export (6) on the bypass valve, bypass export (6) communicate with each other with medium export (5), be provided with the filter element subassembly in casing (1), the filter element subassembly includes end plate (7), the upper end of end plate (7) is provided with first cartridge filter (8) from outside to inside at interval in proper order, second cartridge filter (9) and third cartridge filter (10), communicate with each other with medium export (5) between first cartridge filter (8) and second cartridge filter (9), be provided with a plurality of filter import (13) on end plate (7) between second cartridge filter (9) and third cartridge filter (10), communicate with each other with bypass import (4) in third cartridge filter (10).

2. A high flow filter according to claim 1, characterised in that: the bypass inlet (4) is arranged at the lower end of the bypass valve, the third filter cylinder (10) is internally provided with a support cylinder (14), the lower end of the support cylinder (14) is connected with the end plate (7), the upper end of the support cylinder is connected with the bypass inlet (4), the support cylinder (14) is provided with a plurality of communicating holes (16), and the third filter cylinder (10) and the support cylinder (14) are communicated with the bypass inlet (4) through the communicating holes (16).

3. A high flow filter according to claim 1 or 2, characterised in that: the bypass valve comprises a valve body (17), a valve groove (18) is axially arranged in the valve body (17), a guide rod (19) is fixed in the valve groove (18), a movable sleeve (20) is slidably sleeved at the free end of the guide rod (19), a spring (21) is arranged in the movable sleeve (20), one end of the spring (21) abuts against the bottom of the movable sleeve (20), and the other end of the spring is sleeved on the guide rod (19) and abuts against the fixed end of the guide rod (19).

4. A high flow filter according to claim 3, characterised in that: the bypass outlet (6) is positioned at one side of the movable sleeve (20) close to the fixed end of the guide rod (19), the bypass inlet (4) is positioned below the movable sleeve (20), and the movable sleeve (20) corresponding to the bypass inlet (4) is provided with an annular push groove (25).

5. A high flow filter according to claim 3, characterised in that: the upper end of the first filter cylinder (8) is connected with the inner wall of the end cover (3) in a sealing way, and the upper ends of the second filter cylinder (9) and the third filter cylinder (10) are connected with the lower end of the valve body (17) in a sealing way.

6. A high flow filter according to claim 1 or 2, characterised in that: the lower ends of the first filter cartridge (8), the second filter cartridge (9) and the third filter cartridge (10) are hermetically connected with the upper end of the end plate (7), and the filter inlet (13) is uniformly distributed on the end plate (7) along the circumferential direction.