CN218980753U

CN218980753U - Differential pressure filter

Info

Publication number: CN218980753U
Application number: CN202223608547.9U
Authority: CN
Inventors: 马良; 房玉重; 马圣洋; 陈国栋; 刘镇
Original assignee: Shandong Guochen Industrial Group Electromechanical Equipment Co ltd
Current assignee: Shandong Guochen Industrial Group Electromechanical Equipment Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-09
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a differential pressure filter, which relates to the technical field of filtering devices and comprises a machine body, wherein an inner cavity of the machine body is divided into a water inlet area and a water outlet area through a partition plate, a filter element used for communicating the water inlet area and the water outlet area is arranged on the partition plate, a feed pipe and a blow-down pipe used for communicating with the water inlet area, a discharge pipe and a backwash pipe used for communicating with the water outlet area are arranged on the machine body, the backwash pipe is rotationally connected with the machine body, a connecting pipe is arranged at one end of the backwash pipe, which is far away from the backwash pipe, a plurality of flushing covers are circumferentially distributed on the filter element by taking the backwash pipe as the center, the flushing covers are matched with the filter element, and a driving mechanism used for driving the backwash pipe to rotate and a water delivery mechanism used for delivering water into the backwash pipe are arranged on the machine body. The utility model can not influence the filtering operation in the back flushing process, and is beneficial to improving the filtering efficiency.

Description

Differential pressure filter

Technical Field

The utility model relates to the technical field of filtering devices, in particular to a differential pressure filter.

Background

At present, the differential pressure filter is widely applied to the filtering operation of the production water and the domestic water. For example, in the chinese patent with application number 202021704122.6, a full-automatic differential pressure filter is disclosed, as shown in fig. 1, the filter includes a machine body 1, an inner cavity of the machine body is divided into a water inlet area 3 and a water outlet area 4 by a partition board 2, the water inlet area 3 is provided with a coarse screen 5, a microporous metal filter element 6 is connected to the partition board 2, the microporous metal filter element 6 is used for communicating the water inlet area 3 and the water outlet area 4, a feed pipe 7, a discharge pipe 8, a backwash pipe 9 and a drain pipe 10 are arranged on the machine body 1, the feed pipe 7 and the drain pipe 10 are all communicated with the water inlet area 3, the discharge pipe 8 is communicated with the water outlet area 4, and the backwash pipe 9 is communicated with the discharge pipe 8.

After the material enters the water inlet area 3, large particulate matters are filtered through a coarse filter screen 5, and then filtered through a microporous metal filter element 6, and the material reaches the water outlet area 4. During back flushing, water flows through the back flushing pipe 9 to back flush the microporous metal filter element 6 and the coarse filter screen 5.

Since all the microporous metal filter elements 6 and the coarse filter screen 5 are washed during the back washing process, the material cannot be filtered continuously, and the filtering operation is delayed. Therefore, how to be able to avoid influencing the filtering operation in the back flushing process is a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the differential pressure filter, which can not influence the filtering operation in the back flushing process and is beneficial to improving the filtering efficiency.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a differential pressure filter, which comprises a bod, the inner chamber of organism divide into water inlet region and water outlet region through the baffle, be equipped with the filter core that is used for intercommunication water inlet region and water outlet region on the baffle, be equipped with on the organism be used for with water inlet region intercommunication inlet pipe and blow off pipe, be used for with water outlet region intercommunication discharging pipe and backwash pipe, backwash pipe rotates with the organism to be connected, backwash pipe is equipped with the connecting pipe at the one end that gets into water outlet region, the connecting pipe is equipped with the washing cover in the one end of keeping away from backwash pipe, the filter core uses backwash pipe as central circumference distribution has a plurality ofly, washing cover and filter core cooperation are equipped with on the organism and are used for driving backwash pipe pivoted actuating mechanism and are used for toward backwash intraductal water supply mechanism.

Further, the filter element comprises at least two filter cylinders which are sleeved in sequence from outside to inside, the filter holes on all the filter cylinders are reduced in sequence from outside to inside, and two adjacent filter cylinders are connected through a connecting rod.

Further, be equipped with the fixed pipe on the organism, the backwash pipe is located in the fixed pipe, and the backwash pipe rotates with the fixed pipe to be connected, and the outer wall of backwash pipe is equipped with first seal groove, is equipped with the first sealing washer that is used for sealed fixed pipe and backwash pipe clearance in the first seal groove.

Further, the driving mechanism comprises a motor, a main gear and a pinion, the motor is arranged on the machine body, the main gear is arranged on an output shaft of the motor, the pinion is arranged at one end of the backwash tube outside the water outlet area, and the main gear is matched with the pinion.

Further, the water delivery mechanism comprises a water tank, a water pump and a water delivery pipe, wherein a water outlet of the water tank is connected with a water inlet of the water pump, a water outlet of the water pump is connected with the water delivery pipe, and one end of the water delivery pipe far away from the water pump is rotationally connected with the backwashing pipe.

Further, the water supply pipe is provided with a connecting pipe at one end far away from the water pump, the backwashing pipe is arranged in the connecting pipe and is rotationally connected with the connecting pipe, the outer wall of the backwashing pipe is provided with a second sealing groove, and a second sealing ring for sealing the gap between the connecting pipe and the backwashing pipe is arranged in the second sealing groove.

The utility model has the beneficial effects that: in the differential pressure filter of the embodiment, one filter element can be backwashed every time, and other filter elements can be normally filtered, so that the filtering operation is not delayed in the whole backwashing process, and the improvement of the filtering efficiency is facilitated.

Drawings

FIG. 1 is a schematic diagram of a structure of the background art;

FIG. 2 is a schematic illustration of a partial construction of a differential pressure filter;

FIG. 3 is a schematic diagram showing a partial structure of a differential pressure filter;

FIG. 4 is a schematic illustration of a partial construction of a differential pressure filter;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a partial enlarged view at B in FIG. 4;

FIG. 7 is a schematic diagram of a differential pressure filter;

fig. 8 is a partial enlarged view at C in fig. 7.

Reference numerals illustrate:

the filter comprises a machine body, a 2-partition plate, a 3-water inlet area, a 4-water outlet area, a 5-coarse screen, a 6-metal filter element, a 7-feed pipe, an 8-discharge pipe, a 9-backwash pipe, a 901-first sealing groove, a 902-second sealing groove, a 10-blow-down pipe, a 11-fixed pipe, a 12-limiting part, a 13-first sealing ring, a 14-connecting pipe, a 15-flushing cover, a 16-motor, a 17-main gear, a 18-auxiliary gear, a 19-water tank, a 20-water pump, a 21-water supply pipe, a 22-connecting pipe, a 23-second sealing ring, a 24-filter cartridge and a 25-connecting rod.

Detailed Description

For a better understanding of the present utility model, the present utility model is further described below with reference to the accompanying drawings. It is noted that in the description of the present utility model, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Examples:

as shown in fig. 7, a differential pressure filter includes a body 1. A baffle plate 2 is fixedly arranged in the inner cavity of the machine body 1, the inner cavity of the machine body 1 is divided into a water inlet area 3 and a water outlet area 4 by the baffle plate 2, and the water outlet area 4 is positioned above the water inlet area 3.

As shown in fig. 7, the machine body 1 is provided with a feed pipe 7, a drain pipe 10, a discharge pipe 8 and a backwash pipe 9. The feed pipe 7 and the blow-down pipe 10 are communicated with the water inlet area 3, and the discharge pipe 8 and the backwash pipe 9 are communicated with the water outlet area 4.

As shown in fig. 6-7, a fixed pipe 11 is fixedly installed on the machine body 1, the fixed pipe 11 is communicated with the water outlet area 4, the backwash pipe 9 is arranged in the fixed pipe 11, and the backwash pipe 9 can rotate in the fixed pipe 11. In order to prevent the backwash tube 9 from moving in the fixing tube 11 along the axial direction of the fixing tube 11, two limiting portions 12 are fixedly mounted on the backwash tube 9, the fixing tube 11 is sandwiched between the two limiting portions 12, and each limiting portion 12 includes a plurality of projection structures. In order to improve the tightness of the backwash tube 9 when rotating in the fixed tube 11, a first sealing groove 901 is formed in the outer wall of the backwash tube 9, a first sealing ring 13 is arranged in the first sealing groove 901, and the first sealing ring 13 can seal a gap between the outer wall of the backwash tube 9 and the inner wall of the fixed tube 11.

As shown in fig. 2 and 4, the backwash tube 9 is fixedly provided with a connection pipe 14 at one end entering the water outlet zone 4, and the connection pipe 14 is provided with a flushing hood 15 at one end far from the backwash tube 9.

As shown in fig. 7, the machine body 1 is provided with a driving mechanism for driving the backwash tube 9 to rotate and a water feeding mechanism for feeding water into the backwash tube 9.

As shown in fig. 3-4, the drive mechanism includes a motor 16, a main gear 17, and a secondary gear 18. The machine body 1 is fixedly provided with a motor 16, an output shaft of the motor 16 is fixedly provided with a main gear 17, one end of the backwashing pipe 9 outside the water outlet area 4 is fixedly provided with a secondary gear 18, and the main gear 17 is matched with the secondary gear 18. When the output shaft of the motor 16 drives the main gear 17 to rotate, the auxiliary gear 18 matched with the main gear 17 rotates, and the auxiliary gear 18 drives the backwash tube 9, the connecting tube 14 and the flushing cover 15 to rotate together.

As shown in fig. 7, the water feeding mechanism includes a water tank 19, a water pump 20, and a water feeding pipe 21. The water tank 19 can be directly placed on the ground or mounted on the machine body 1, the water outlet of the water tank 19 is connected with the water inlet of the water pump 20, and the water outlet of the water pump 20 is connected with the water supply pipe 21. The water supply pipe 21 is fixedly provided with a connecting pipe 22 at one end far away from the water pump 20, as shown in fig. 4-5, the backwash pipe 9 is arranged in the connecting pipe 22, the backwash pipe 9 can rotate in the connecting pipe 22, the outer wall of the backwash pipe 9 is provided with a second sealing groove 902, a second sealing ring 23 is arranged in the second sealing groove 902, and the second sealing ring 23 can seal a gap between the outer wall of the backwash pipe 9 and the inner wall of the connecting pipe 22. When the driving mechanism drives the backwash tube 9 to rotate, the backwash tube 9 can rotate in the engagement tube 22. Under the suction action of the water pump 20, the water in the water tank 19 flows out through the water supply pipe 21, the connecting pipe 22, the backwash pipe 9, the connecting pipe 14 and the flushing hood 15 in sequence.

As shown in fig. 7-8, a plurality of filter elements are arranged on the partition board 2, the filter elements can be communicated with the water inlet area 3 and the water outlet area 4, and all the filter elements are circumferentially distributed by taking the backwashing pipe 9 as the center. The filter element comprises at least two filter cylinders 24 which are sequentially sleeved from outside to inside and the filter holes of which are sequentially reduced, a connecting rod 25 is arranged between every two adjacent filter cylinders 24, two ends of the connecting rod 25 are fixedly connected with the two adjacent filter cylinders 24, and the upper end of the filter cylinder 24 which is measured innermost is fixedly arranged on the partition plate 2.

In back flushing, the differential pressure filter of this embodiment needs to perform the following operations: (1) The driving mechanism is used for driving the backwash pipe 9, the connecting pipe 14 and the flushing cover 15 to rotate, so that the flushing cover 15 is buckled on the first filter element, and the driving mechanism is closed; (2) The water delivery mechanism is used for delivering water into the backwashing pipe 9, the water in the backwashing pipe 9 sequentially enters the first filter element through the connecting pipe 14 and the flushing cover 15, dirt trapped on the first filter element is flushed, and the water delivery mechanism is closed after flushing; (3) The driving mechanism is used for continuously driving the backwash tube 9, the connecting tube 14 and the flushing cover 15 to rotate, the flushing cover 15 is buckled on the second filter element, and the operation is repeated until the backwash of all the filter elements is completed.

According to the back flushing process, in the differential pressure filter of the embodiment, back flushing can be carried out on one filter element each time, and other filter elements can be used for normal filtration, so that the filtering operation is not delayed in the whole back flushing process, and the improvement of the filtering efficiency is facilitated.

In the differential pressure filter of the present embodiment, the backwash tube 9 is driven to rotate by the driving mechanism, so that the backwash tube 9 does not need to be manually rotated, which is beneficial to reducing the labor intensity. In addition, the driving mechanism is arranged above the machine body 1, so that the driving mechanism is convenient to overhaul and maintain.

In the differential pressure filter of the present embodiment, the backwash tube 9 that rotates relative to the body 1 is located at the upper portion of the body 1, so that the risk of leakage can be reduced when the water level is not excessively high.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The utility model provides a differential pressure filter, includes the organism, and the inner chamber of organism divide into water inlet region and water outlet region through the baffle, is equipped with the filter core that is used for intercommunication water inlet region and water outlet region on the baffle, be equipped with on the organism be used for with water inlet region intercommunication inlet pipe and blow off pipe, be used for with water outlet region intercommunication discharging pipe and backwash pipe, its characterized in that, the backwash pipe with the organism rotates to be connected, backwash pipe is getting into the one end in water outlet region is equipped with the connecting pipe, and the connecting pipe is equipped with the washing cover in the one end that keeps away from backwash pipe, the filter core uses backwash pipe as central circumference distribution has a plurality ofly, washes cover and filter core cooperation, is equipped with on the organism and is used for driving backwash pipe pivoted actuating mechanism and is used for the delivery mechanism of water in the backwash pipe.

2. The differential pressure filter of claim 1, wherein the filter element comprises at least two filter cartridges sleeved in sequence from outside to inside, the filter holes of all the filter cartridges are reduced in sequence from outside to inside, and two adjacent filter cartridges are connected through a connecting rod.

3. The differential pressure filter according to claim 1, wherein the machine body is provided with a fixed pipe, the backwash pipe is arranged in the fixed pipe, the backwash pipe is rotationally connected with the fixed pipe, the outer wall of the backwash pipe is provided with a first sealing groove, and a first sealing ring for sealing the gap between the fixed pipe and the backwash pipe is arranged in the first sealing groove.

4. The differential pressure filter according to claim 1, wherein the driving mechanism comprises a motor, a main gear and a pinion, the motor is arranged on the machine body, the main gear is arranged on an output shaft of the motor, the pinion is arranged at one end of the backwash tube outside the water outlet area, and the main gear is matched with the pinion.

5. A differential pressure filter as claimed in any one of claims 1 to 4, wherein the water supply means comprises a water tank, a water pump, and a water supply pipe, the water outlet of the water tank being connected to the water inlet of the water pump, the water outlet of the water pump being connected to the water supply pipe, the water supply pipe being rotatably connected to the backwash pipe at an end remote from the water pump.

6. The differential pressure filter according to claim 5, wherein the water supply pipe is provided with a connecting pipe at one end far away from the water pump, the backwash pipe is arranged in the connecting pipe, the backwash pipe is rotationally connected with the connecting pipe, the outer wall of the backwash pipe is provided with a second sealing groove, and a second sealing ring for sealing a gap between the connecting pipe and the backwash pipe is arranged in the second sealing groove.