CN215462437U

CN215462437U - Integral sealing structure of filter element tube plate of backwashing filter

Info

Publication number: CN215462437U
Application number: CN202121658738.9U
Authority: CN
Inventors: 惠建朋
Original assignee: Gu'an Huimin Plastic Filter Co ltd
Current assignee: Gu'an Huimin Plastic Filter Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-01-11
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses an integral sealing structure of a filter element tube plate of a backwashing filter, which comprises a filter element group consisting of a plurality of filter elements arranged in parallel, an upper tube plate arranged at the upper part of the filter element group and a lower tube plate arranged at the lower part of the filter element group; the upper tube plate is provided with through holes with the number equal to that of the filter elements; the positions of the lower tube plate corresponding to the through holes are respectively provided with a fixing through hole which is concentric with each through hole and is matched with a fixing column arranged at the bottom of the filter element; a plurality of pulling rods which are connected with the upper tube plate and the lower tube plate in a locking manner are arranged between the upper tube plate and the lower tube plate in a penetrating manner, wherein an internal thread is arranged on a through hole of the upper tube plate, and an external thread matched with the internal thread is arranged on the side wall of the outlet end of the filter element; a spring pad for shock absorption is longitudinally arranged between the upper tube plate and the filter element. The utility model not only prevents the filter element from short circuit in the service life, but also plays a role of shock absorption when the filter element group generates vibration, thereby avoiding the phenomenon of integral scattering.

Description

Integral sealing structure of filter element tube plate of backwashing filter

Technical Field

The utility model relates to the technical field of backwashing filters, in particular to a structure for integrally sealing a filter element and a tube plate of a backwashing filter.

Background

At present, a tube sheet and a filter element are combined in a tube array type backwashing filter, and then an upper flange and a lower flange of a tube array tank body clamp the tube sheet for fixing, so that sealing before and after filtering is realized.

As shown in fig. 1 to 2, most of the sealing between the filter element 2 and the tube plate at present is to pull out the rod 1 for installation and fixation, that is, the upper tube plate 3 and the lower tube plate 4 are connected by pulling out the rod 1 through a plurality of bolts for fixation, which is a detachable type, when one or more filter elements 2 in the filter element group are damaged, they can be detached and replaced with new filter elements, so as not to affect the filtering effect of the whole filter element group, and the filter element group has a theoretical medium flow direction as shown in fig. 3.

However, the disadvantage of this filter element group is that the upper tube plate 3 and the filter element 2 work piece have poor sealing performance, and the method solved at present mostly seals by arranging the fluorine rubber gasket 5, but after working for a long time (generally three years-five years), the fluorine rubber gasket 5 is aged and hardened to fall off, and after the fluorine rubber gasket 5 is not provided, the medium naturally passes through the short circuit from the upper tube plate 3 and the filter element 2 work piece (i.e. the medium directly enters the downstream without passing through the filter element 2), as shown in fig. 4; moreover, the majority still can cause another problem, be exactly that back flush filter core 2 work certain time or pressure rise to the certain degree after just can carry out the recoil work, the filter core group can produce vibrations among the recoil process, if the fluorine glue gasket sclerosis just can leave the hole after droing this moment, pull out the upper and lower fastener of rod 1 and just can follow vibrations and produce not hard up phenomenon, finally cause the filter core group to appear the phenomenon that the whole was scattered the frame to lose the filter effect, can't satisfy low reaches technology production demand. Therefore, the sealing performance between the upper tube plate and the filter element workpiece can be effectively improved, which is a problem that needs to be solved urgently by the technical staff at the present stage.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an integral sealing structure of a filter element tube plate of a backwashing filter, which can effectively improve the sealing property between an upper tube plate and a filter element workpiece.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.

The integral sealing structure of the filter element tube plate of the backwashing filter comprises a filter element group consisting of a plurality of filter elements arranged in parallel, an upper tube plate arranged at the upper part of the filter element group and a lower tube plate arranged at the lower part of the filter element group; the upper tube plate is provided with through holes which are equal to the filter elements in number and are used for connecting outlet ends of the upper parts of the filter elements; the positions of the lower tube plate corresponding to the through holes of the upper tube plate are respectively provided with a fixing through hole which is concentric with each through hole and is matched with a fixing column arranged at the bottom of the filter element, and the fixing column of each filter element is respectively arranged in the fixing through hole of the lower tube plate in a penetrating way; a plurality of pulling rods are arranged between the upper tube plate and the lower tube plate in a penetrating manner, and two ends of each pulling rod are respectively connected with the outer side surfaces of the upper tube plate and the lower tube plate in a locking manner through nuts; and a spring pad for shock absorption is longitudinally arranged between the upper tube plate and the filter element.

Preferably, the lower part of the through hole of the upper tube plate is provided with a counter bore used for wrapping the filter element.

Preferably, the spring gasket is sleeved at the outlet end of the filter element and is arranged inside the counter bore.

Preferably, the outlet end of the filter element is provided with a notch for facilitating the disassembly and assembly of the filter element.

Due to the adoption of the technical scheme, the technical progress of the utility model is as follows.

According to the utility model, each filter element is in threaded connection with the upper tube plate, compared with the original method that the filter element is sealed by the fluorine rubber gasket, the sealing effect is better, and the pulling force of the pulling rod is added, so that the sealing problem of the whole filter element group and the tube plate is solved, and the phenomenon of short circuit of the filter element in the service life is avoided; through the spring pad that sets up between filter core and upper tube board, can play absorbing effect when the filter core group produces vibrations to avoid appearing the phenomenon that wholly looses the frame.

Drawings

FIG. 1 is a schematic view of the installation of a filter element and an upper tube plate of an original filter element group;

FIG. 2 is a schematic view of the installation of the filter element and the lower tube plate of the original filter element group;

FIG. 3 is the theoretical medium flow direction of the primary filter element group;

FIG. 4 is the medium flow direction after the fluorine rubber gasket of the original filter element group is damaged;

FIG. 5 is a schematic structural view of the present invention;

fig. 6 is a line break in the filter element of the present invention.

Wherein: 1. the filter comprises a pull rod, a filter element 2, a fixing column 21, a notch 22, an upper tube plate 3, a lower tube plate 4, a fluorine rubber gasket 5 and a spring pad 6.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

A backwash filter element tube plate integral sealing structure is shown by combining a figure 5 and comprises a plurality of filter elements 2, an upper tube plate 3 and a lower tube plate 4, wherein the plurality of filter elements 2 are arranged in parallel to form a filter element group, the upper tube plate 3 is arranged at the upper part of the filter element group, and the lower tube plate 4 is arranged at the lower part of the filter element group; go up and wear to be equipped with a plurality of between tube sheet 3 and the lower tube sheet 4 and pull out rod 1, pull out the both ends of rod 1 and all through the nut respectively with the outside face locking connection of last tube sheet 3 and lower tube sheet 4 to realize the sealed between filter element group and tube sheet.

An outlet is formed in the upper portion of the filter element 2 and used for medium to flow out, an annular bulge is arranged on the outer side wall of the outlet end, and external threads are formed on the outer side wall of the upper portion of the bulge; the bottom of the filter element 2 is provided with fixing posts 21, as shown in fig. 2.

Go up and seted up a plurality of through-hole on the tube sheet 3, the quantity of through-hole equals with the quantity of filter core 2, has seted up the internal thread on the lateral wall of through-hole, and the external screw thread that internal thread and 2 exit ends of filter core were seted up matches, goes up tube sheet 3 and filter core 2 and passes through threaded connection, compares originally and establishes the soft sealing mode of fluorine glue gasket 5 through the pad, now becomes hard seal, and its sealed effect is better, does not worry in addition also that fluorine glue gasket 5 is ageing problem.

The lower tube plate 4 is provided with fixing through holes corresponding to the through holes of the upper tube plate 3, the fixing through holes are concentric with the through holes corresponding to the upper tube plate 3 respectively, the fixing through holes are matched with the fixing columns 21, and the fixing columns 21 of the filter elements 2 are arranged in the fixing through holes in a penetrating mode respectively, so that sealing between the lower tube plate 4 and the filter elements 2 is achieved.

The lower part of the through hole of the upper tube plate 3 is also provided with a counter bore, and the counter bore is matched with the annular bulge at the upper part of the filter element 2 so as to wrap the filter element 2; go up tube sheet 3 and filter core 2 and vertically be provided with spring pad 6 between, spring pad 6 cover is established at the exit end of filter core 2 and is set up in the inside of counter bore, the upper end and the counter bore fixed connection of spring pad 6, the lower extreme and the bellied last fixed surface of annular of spring pad 6 are connected, when filter core group produces vibrations, spring pad 6 can play absorbing effect to it is not hard up because of vibrations to avoid filter core 2 and the connection of going up tube sheet 3, leads to whole scattered frame.

The outlet end of the filter element 2 is also provided with a notch 22, as shown in fig. 6, the notch 22 is a straight notch, when the filter element 2 needs to be disassembled and assembled, a wrench with the shape of a Chinese character 'yi' is used, the disassembly and the assembly can be conveniently completed through the notch 22, and meanwhile, tools can be prevented from being touched with the tube body when the assembly and the assembly are carried out.

When the filter core assembly is used, the filter cores 2 are in threaded connection with the upper tube plate 3, compared with the original method that the filter cores are sealed by the fluorine rubber gasket 5, the sealing effect is better, and the problem of sealing the filter core assembly and the tube plate integrally is solved by the aid of the pulling force of the pulling rod 1, so that the filter cores 2 cannot be short-circuited within the service life; through the spring pad 6 that sets up, can play absorbing effect when the filter element group produces vibrations to avoid appearing the phenomenon that wholly scatters the frame.

Claims

1. The integral sealing structure of the filter element tube plate of the backwashing filter comprises a filter element group consisting of a plurality of filter elements (2) which are arranged in parallel, an upper tube plate (3) arranged at the upper part of the filter element group and a lower tube plate (4) arranged at the lower part of the filter element group; the upper tube plate (3) is provided with through holes which are equal to the filter elements (2) in number and are used for connecting the outlet ends of the upper parts of the filter elements (2); the positions, corresponding to the through holes of the upper tube plate (3), of the lower tube plate (4) are respectively provided with fixing through holes which are concentric with the through holes and are matched with fixing columns (21) arranged at the bottoms of the filter elements (2), and the fixing columns (21) of the filter elements (2) are respectively arranged in the fixing through holes of the lower tube plate (4) in a penetrating manner; go up tube sheet (3) and wear to be equipped with a plurality of between tube sheet (4) down and pull out rod (1), the both ends of pulling out rod (1) all through the nut respectively with last tube sheet (3) and the outside face locking connection of tube sheet (4) down, its characterized in that: the side wall of the through hole of the upper tube plate (3) is provided with an internal thread, and the side wall of the outlet end of the filter element (2) is provided with an external thread matched with the internal thread of the through hole of the upper tube plate (3); and a spring pad (6) for damping is longitudinally arranged between the upper tube plate (3) and the filter element (2).

2. The backwash filter cartridge tube sheet integral seal structure of claim 1, wherein: the lower part of the through hole of the upper tube plate (3) is provided with a counter bore used for wrapping the filter element (2).

3. The backwash filter cartridge tube sheet integral seal structure of claim 2, wherein: the spring pad (6) is sleeved at the outlet end of the filter element (2) and is arranged in the counter bore.

4. The backwash filter cartridge tube sheet integral seal structure of claim 1, wherein: the outlet end of the filter element (2) is provided with a notch (22) for facilitating the disassembly and assembly of the filter element (2).