CN219091300U

CN219091300U - Sewage discharging device of self-cleaning filter

Info

Publication number: CN219091300U
Application number: CN202223001440.8U
Authority: CN
Inventors: 胡建国; 王志中; 许宗枝; 金振华; 张延�; 陈荣明
Original assignee: Jiangsu Power Equipment Co ltd
Current assignee: Jiangsu Power Equipment Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-05-30
Anticipated expiration: 2032-11-11

Abstract

The utility model relates to a sewage disposal device of a self-cleaning filter, which comprises a supporting frame and a hollow pipe, wherein the supporting frame comprises two sealing rings which are coaxially arranged up and down, a plurality of separation plates are arranged between the two sealing rings, the top and the bottom of each separation plate are respectively fixedly arranged on the two sealing rings, the hollow pipe coaxially passes through the sealing ring positioned below, the top end of the hollow pipe is sealed, a sewage disposal bucket is fixedly arranged on the outer wall of the hollow pipe, the sewage disposal bucket is communicated with the hollow pipe, and two first sealing strips and two second sealing strips are fixedly arranged on the sewage disposal bucket. According to the self-cleaning filter sewage discharging device, the first sealing strip and the second sealing strip are used for compensating error gaps generated during the manufacturing process of the main shaft and the sewage discharging hopper, so that leakage during sewage discharging of the back flushing sewage discharging cavity is prevented, the sewage discharging precision of the filter is improved, the manufacturing precision requirements of the main shaft and the sewage discharging hopper are reduced, the difficulty of assembly and gap adjustment is reduced, and blocking is prevented.

Description

Sewage discharging device of self-cleaning filter

Technical Field

The utility model relates to a sewage disposal device for a self-cleaning filter, and belongs to the field of filters.

Background

Self-cleaning filters are important equipment for utility water systems for power plants to filter out large particulate solid impurities from the system. The back flushing sewage disposal device is a core component of the self-cleaning filter, the sealing device and the reliability of the back flushing sewage disposal device directly determine the overall performance of the self-cleaning filter, when the solid garbage on the inner wall of the net core reaches a certain degree, after the pressure difference between the inner and the outer of the net core reaches a back flushing value, the equipment sewage disposal device starts to work, and various impurities attached on the inner wall of the net core are discharged out of the equipment, so that the effects of on-line continuous filtration and automatic cleaning sewage disposal are achieved.

The utility model patent with application number 201420761021.0 discloses an automatic cleaning type high-pressure fine filter, which comprises a shell, wherein a net core is arranged in the shell, a drain hopper with a lateral opening is arranged in the net core, a drain pipeline is arranged in the shell, the upper half section of the drain pipeline is positioned on the central shaft of the shell, the lower half section of the drain pipeline is downwards communicated with the outside of the shell, the drain hopper is communicated with the upper half section of the drain pipeline, a motor is arranged at the top of the shell, and the motor is connected with the upper half section of the drain pipeline through a positioning detection device and a transmission device below the motor. The utility model has the advantages of being capable of being arranged at the outlet of the condensate pump of the main water supply system of the power plant, bearing high working pressure, having the function of automatic cleaning and pollution discharge, and having the filtering precision reaching 0.1-0.3 mm. However, the following disadvantages still exist:

1. in the design structure of the existing sewage discharging device, a certain leakage gap exists between a sewage discharging hopper and a net core, the leakage gap exists on the upper side and the bottom side of the sewage discharging hopper respectively, the gap is determined by the manufacturing precision and the assembly precision, and the size of the common gap can reach more than 5 mm, so that the sewage discharging is not thorough;

2. the existing pollution discharge hopper, the main shaft hollow pipe and the main shaft head are of a welded integrated structure, a leakage gap exists between the pollution discharge hopper and the net core sealing gasket, welding deformation occurs when the main shaft head and the main shaft central pipe are welded, welding deformation also occurs when the main shaft central pipe is welded, welding deformation also occurs when the pollution discharge hopper and the main shaft central pipe are welded, certain installation deviation also occurs when the main shaft is assembled in the total process, and the pollution discharge hopper alignment surface is comprehensively caused to fail to eliminate a larger straightness error, and a leakage gap exists between the pollution discharge hopper alignment surface and the net core sealing gasket.

Therefore, there is a need for a self-cleaning filter drain that avoids leakage of the drain, improves the drain accuracy of the filter, reduces the manufacturing accuracy requirements of the main shaft and the drain hopper, and reduces the difficulty of assembly and gap adjustment.

Disclosure of Invention

The utility model aims to solve the technical problems that: in order to overcome the defects of the prior art, the sewage disposal device of the self-cleaning filter is provided, which can avoid sewage leakage, improve the sewage disposal precision of the filter, reduce the manufacturing precision requirements of a main shaft and a sewage disposal bucket and reduce the difficulty of assembly and clearance adjustment.

The utility model solves the problems by adopting the following technical scheme: the utility model provides a drain from cleaning filter, includes braced frame and hollow tube, braced frame includes the sealing ring of coaxial arrangement from top to bottom, and the annular hole that is located the sealing ring of top is sealed, is provided with a plurality of division boards between two sealing rings, and a plurality of division boards use the sealing ring axis as central circumference evenly distributed, the top and the bottom plate of division board are fixed respectively to be set up on two sealing rings, the hollow tube is coaxial to pass the sealing ring that is located the below, the top of hollow tube is sealed, fixedly on the outer wall of hollow tube is provided with the blowdown fill, blowdown fill and hollow tube intercommunication, the one side opening of keeping away from the hollow tube of blowdown fill, fixedly on the blowdown fill be provided with two first sealing strips and two second sealing strips, two first sealing strips respectively with the sealed laminating of inner wall of two sealing rings, two second sealing strips respectively with two adjacent division boards seal laminating, two first sealing strips and two second sealing strips surround into the framework, first sealing strip and second sealing strip are elastic material.

Preferably, the top sealing cover of the sealing ring located above is provided with a cover plate.

Preferably, the hollow tube is coaxially connected with a main shaft through a transmission member, and the main shaft is driven by a motor.

Preferably, the bottom end of the hollow tube is externally connected with a collecting device for collecting impurities.

Preferably, the two first sealing strips and the two second sealing strips are positioned on the outer wall of the sewage hopper.

Preferably, the two first sealing strips and the two second sealing strips are detachably connected with the sewage hopper.

Preferably, the two first sealing strips and the two second sealing strips are fixedly connected with the sewage hopper through bolts.

Preferably, the hollow tube and the sewage draining bucket are of an integrated structure.

Preferably, the number of the partition plates is 12.

Preferably, one side of the partition plate, which is close to the axis of the sealing ring, is an arc surface coaxial with the sealing ring.

Compared with the prior art, the utility model has the advantages that:

according to the self-cleaning filter sewage disposal device, the first sealing strip and the second sealing strip are used for compensating error gaps generated during the manufacture of the main shaft and the sewage disposal bucket, so that leakage during sewage disposal of the back flushing sewage disposal chamber is prevented, the sewage disposal precision of the filter is improved, the manufacturing precision requirements of the main shaft and the sewage disposal bucket are reduced, the difficulty of assembly and gap adjustment is reduced, and blocking is prevented.

Drawings

FIG. 1 is a schematic view of a self-cleaning filter drain assembly according to the present utility model;

fig. 2 is an enlarged view of a portion a of fig. 1;

FIG. 3 is a schematic view of the structure in the A-A direction;

fig. 4 is an enlarged view of a portion B of fig. 3.

Wherein: the filter screen comprises a supporting frame 1, a sealing ring 101, a partition plate 102, a hollow pipe 2, a sewage bucket 3, a first sealing strip 4, a second sealing strip 5, a cover plate 6, a main shaft 7, a transmission piece 8, bolts 9 and a filter screen 10.

Detailed Description

As shown in fig. 1-4, a self-cleaning filter sewage disposal device in this embodiment comprises a supporting frame 1 and a hollow tube 2, the supporting frame 1 comprises two sealing rings 101 coaxially arranged up and down, a top sealing cover of the sealing ring 101 positioned above is provided with a cover plate 6, when the inside of the supporting frame 1 needs to be maintained, the cover plate 6 is opened, a plurality of separation plates 102 are arranged between the two sealing rings 101, the plurality of separation plates 102 are uniformly distributed around the axis of the sealing rings 101, the top and the bottom plate of the separation plates 102 are respectively and fixedly arranged on the two sealing rings 101, a filter screen 10 surrounds the outer wall of the separation plates 102 to form a cylinder, the two sealing rings 101 are respectively positioned at the top end and the bottom end in the filter screen 10, the filter screen 10 is separated into mutually independent back flushing sewage disposal chambers through the separation plates 102, the hollow tube 2 coaxially passes through the sealing rings 101 positioned below, the top end of the hollow tube 2 is sealed, the hollow tube 2 is coaxially connected with a main shaft 7 through a transmission piece 8, the main shaft 7 is driven by a motor, the bottom end of the hollow tube 2 is externally connected with a collecting device for collecting impurities, the outer wall of the hollow tube 2 is fixedly provided with a sealing ring 3, the two sealing rings 3 are respectively and fixedly arranged on two sealing rings 4, two sealing rings 5 are respectively and fixedly connected with two sealing strips 4, sealing strips 5 are respectively and sealing strips 4 are respectively arranged on two sides and sealing rings 5, sealing strip 4 are respectively and sealing strip 4, after the water is conveyed into the filter screen 10 from the sealing ring 101 below, the water passes through the filter screen 10, and impurities in the water are trapped through the filter screen 10;

when impurities on the filter screen 10 need to be cleaned, the main shaft 7 drives the hollow pipe 2 to rotate through the transmission piece 8, and enables the two second sealing strips 5 on the sewage bucket 3 to rotate to the two separation plates 102 on the back flushing sewage cavity needing sewage, the impurities on the inner wall of the filter screen 10 are blown into the sewage bucket 3 from the opening through the external back flushing device, and the impurities in the sewage bucket 3 are conveyed from the hollow pipe 2 to the collecting device for collection;

when another back flush blowdown cavity is needed to be blowdown, the hollow pipe 2 is rotated by a corresponding angle, and the first sealing strip 4 and the second sealing strip 5 are in a compressed state after being installed, when the hollow pipe 2 rotates, through the elastic action of the first sealing strip 4 and the second sealing strip 5, not only can the error gap generated during the manufacture of the main shaft 7 and the blowdown hopper 3 be compensated, but also leakage during the blowdown of the back flush blowdown cavity can be prevented, the blowdown precision of the filter is improved, the manufacturing precision requirements of the main shaft 7 and the blowdown hopper 3 are reduced, the difficulty of assembly and gap adjustment is reduced, and the clamping can be prevented.

In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.

Claims

1. The utility model provides a drain of self-cleaning filter, includes braced frame (1) and hollow tube (2), its characterized in that, braced frame (1) includes two sealing rings (101) of coaxial arrangement from top to bottom, and the annular hole that is located sealing ring (101) of top is sealed, is provided with a plurality of division boards (102) between two sealing rings (101), and a plurality of division boards (102) use sealing ring (101) axis as central circumference evenly distributed, the top and the bottom plate of division board (102) are fixed respectively to be set up on two sealing rings (101), hollow tube (2) coaxial pass sealing ring (101) that are located the below, the top of hollow tube (2) is sealed, fixed on the outer wall of hollow tube (2) is provided with blowdown fill (3), blowdown fill (3) and hollow tube (2) intercommunication, the one side opening that keeps away from hollow tube (2) of blowdown fill (3) is last to be fixedly provided with two first sealing strips (4) and two second sealing strips (5), two first sealing strips (4) are laminated with two inner walls (101) respectively, two sealing strips (5) are laminated with two sealing strips (5) respectively, the first sealing strip (4) and the second sealing strip (5) are made of elastic materials.

2. A self-cleaning filter drain as defined in claim 1, wherein: the top sealing cover of the sealing ring (101) positioned above is provided with a cover plate (6).

3. A self-cleaning filter drain as defined in claim 1, wherein: the hollow tube (2) is coaxially connected with a main shaft (7) through a transmission piece (8), and the main shaft (7) is driven by a motor.

4. A self-cleaning filter drain as defined in claim 1, wherein: the bottom end of the hollow tube (2) is externally connected with a collecting device for collecting impurities.

5. A self-cleaning filter drain as defined in claim 1, wherein: the two first sealing strips (4) and the two second sealing strips (5) are both positioned on the outer wall of the sewage discharge hopper (3).

6. A self-cleaning filter drain as defined in claim 1 or 5, wherein: the two first sealing strips (4) and the two second sealing strips (5) are detachably connected with the sewage draining hopper (3).

7. A self-cleaning filter drain as defined in claim 6, wherein: the two first sealing strips (4) and the two second sealing strips (5) are fixedly connected with the sewage bucket (3) through bolts (9).

8. A self-cleaning filter drain as defined in claim 1, wherein: the hollow pipe (2) and the sewage discharge hopper (3) are of an integrated structure.

9. A self-cleaning filter drain as defined in claim 1, wherein: the number of the partition plates (102) is 12.

10. A self-cleaning filter drain as defined in claim 1, wherein: one side of the partition plate (102) close to the axis of the sealing ring (101) is an arc surface coaxial with the sealing ring (101).