Filtering device for municipal water supply and drainage

Abstract

The utility model discloses a filtering device for municipal water supply and drainage, which relates to the technical field of municipal water supply and drainage equipment and comprises a three-way valve, a first branch pipe and a second branch pipe, the two opposite ends of the three-way valve are respectively connected with the first branch pipe and the second branch pipe, and the other end of the three-way valve is connected with a first water supply and drainage pipe. By arranging the three-way valve, the first branch pipe, the second branch pipe and the Y-shaped pipe, double-channel filtration can be realized, and when one filter needs to be cleaned or replaced, operation of municipal water supply and drainage equipment does not need to be suspended, so that shutdown loss can be reduced, the filter cleaning or replacing cost is reduced, and the working efficiency is improved. The rotary filter element is arranged in the filter, the rotary filter element can be driven by an external motor to rotate by 180 degrees, double-face alternate filtering is achieved, and therefore the single-time use cycle of the filter element can be prolonged, the filter cleaning and replacing frequency can be reduced, and the working intensity of maintenance personnel can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal water supply and drainage equipment, in particular to a filtering device for municipal water supply and drainage. Background Art

[0002] Municipal water supply and drainage generally refers to the urban water supply system and drainage system, referred to as water supply and drainage. The water supply project supplies water for living and production for residents and factories, mines and transportation enterprises, as well as water for fire fighting and road greening. It is composed of water supply sources, water intake structures, raw water pipelines, water treatment plants and water supply networks. It has the function of collecting and transporting raw water to improve water quality. The water pipes in municipal water supply and drainage need to use filtering devices.

[0003] After searching, patent authorization announcement number CN 212914783 U discloses a filtering device for municipal water supply and drainage, "including a filter box, the left and right ends of the filter box are fixedly connected to a connecting box, and the ends of the two groups of connecting boxes away from the filter box are fixedly connected to connecting columns, the ends of the connecting columns away from the connecting box are fixedly connected to drainage pipes, and the drainage pipes and the connecting columns are commonly fixedly interspersed with fixed rods, the ends of the connecting box away from the filter box are fixedly connected to fixed pipes, and the fixed pipes are fixedly interspersed with drainage devices, the middle part of the upper end of the filter box is fixedly interspersed with a filtering device, and the lower end of the filtering device penetrates the middle part of the upper end of the filter box and is fixedly interspersed to the middle part of the lower box wall in the filter box". However, the above-mentioned filtering device needs to cut off the flow of municipal water when cleaning the filter screen, that is, it needs to be shut down for operation, which will undoubtedly affect the normal operation of the municipal water supply and drainage system and bring inconvenience to residents' production and life. Utility Model Content

[0004] The purpose of the utility model is to provide a filtering device for municipal water supply and drainage to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A filtering device for municipal water supply and drainage, comprising a three-way valve, a first branch pipe and a second branch pipe, the two opposite ends of the three-way valve are respectively connected to the first branch pipe and the second branch pipe, the other end of the three-way valve is connected to the first water supply and drainage pipe, the other ends of the first branch pipe and the second branch pipe are separately connected to a filter, a Y-shaped tube is arranged between the two filters, the two left-right symmetrical ends of the Y-shaped tube are respectively connected to the two filters, the other end of the Y-shaped tube is connected to the second water supply and drainage pipe, the filter comprises a housing, a rotating filter element, a water outlet pipe, a partition plate, a lower bearing, a shaft rod, an upper bearing, a gear transmission assembly and a motor, a rotating filter element is arranged in the housing, a shaft rod is installed on the upper part of the rotating filter element, the shaft rod The rod is rotatably connected to an upper bearing embedded in the top of the shell, the shaft rod is connected to an output shaft of a motor installed on the outer wall of the shell by a gear transmission assembly, an outlet pipe is installed at the bottom of the rotating filter element, a partition plate is installed in the shell just below the rotating filter element, the outlet pipe penetrates the partition plate and is rotatably connected to a lower bearing installed on the partition plate, the rotating filter element comprises a mesh cylinder, a partition plate, an upper sealing disk and a lower sealing disk, an upper sealing disk and a lower sealing disk are respectively installed at the upper and lower ends of the mesh cylinder, the upper sealing disk and the lower sealing disk are both rotatably sealed with the inner wall of the shell, partition plates are symmetrically arranged on the outer walls on both sides of the mesh cylinder, the partition plates are fixedly connected to the upper sealing disk and the lower sealing disk and the partition plates are also rotatably sealed with the inner wall of the shell.

[0007] As a further solution of the utility model: the gear transmission assembly includes a large gear and a small gear, the large gear is installed on the shaft, the small gear is installed on the motor output shaft, and the large gear is meshed with the small gear.

[0008] As a further solution of the utility model: the water outlet pipe is communicated with the interior of the rotary filter element.

[0009] As a further solution of the utility model: a water inlet is arranged on one side of the shell, a water outlet is arranged on the bottom of the shell, the first branch pipe and the second branch pipe are both connected to the water inlet flange, and the Y-shaped pipe is connected to the water outlet flange.

[0010] As a further solution of the utility model: an observation window is installed on the shell.

[0011] As a further solution of the utility model: a slag cleaning port is opened on one side of the shell, and a sealing cover is installed on the slag cleaning port.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can realize dual-channel filtration by arranging a three-way valve, a first branch pipe, a second branch pipe and a Y-shaped pipe. When one of the filters needs to be cleaned or replaced, there is no need to suspend the operation of the municipal water supply and drainage equipment, thereby reducing downtime losses, reducing the cost of cleaning or replacing the filter, and avoiding affecting the lives of urban residents.

[0014] 2. The utility model provides a rotating filter element in the filter, which can be rotated 180 degrees under the drive of an external motor to achieve double-sided alternating filtration, thereby extending the single use cycle of the filter element, reducing the number of times the filter is cleaned and replaced, and reducing the workload of maintenance personnel.

[0015] 3. The utility model opens a slag cleaning port on the outer shell of the filter and seals it with a sealing cover, so that the rotary filter element can be cleaned through the slag cleaning port without disassembling the rotary filter element, making cleaning more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the overall structure of a filtering device for municipal water supply and drainage.

[0017] Figure 2 A filter device for municipal water supply and drainage Figure 1 Schematic diagram of the internal structure of the filter.

[0018] Figure 3 A filter device for municipal water supply and drainage Figure 1 Top view of the filter.

[0019] 1. Three-way valve; 2. First water supply and drainage pipe; 3. First branch pipe; 4. Second branch pipe; 5. Filter; 501. Housing; 502. Rotary filter element; 502-1. Net cylinder; 502-2. Partition plate; 502-3. Upper sealing disk; 502-4. Lower sealing disk; 503. Water outlet pipe; 504. Partition plate; 505. Lower bearing; 506. Shaft; 507. Upper bearing; 508. Gear transmission assembly; 508-1. Large gear; 508-2. Small gear; 509. Motor; 6. Y-type pipe; 7. Second water supply and drainage pipe; 8. Water inlet; 9. Water outlet; 10. Slag removal port; 11. Sealing cover; 12. Sealing ring; 13. Observation window. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 In an embodiment of the utility model, a filtering device for municipal water supply and drainage comprises a three-way valve 1, a first branch pipe 3 and a second branch pipe 4, the opposite two ends of the three-way valve 1 are respectively connected with the first branch pipe 3 and the second branch pipe 4, the other end of the three-way valve 1 is connected with a first water supply and drainage pipe 2, the other ends of the first branch pipe 3 and the second branch pipe 4 are separately connected with a filter 5, a Y-shaped tube 6 is arranged between the two filters 5, the two ends of the Y-shaped tube 6 are respectively connected with the two filters 5, the other end of the Y-shaped tube 6 is connected with the second water supply and drainage pipe 7, the filter 5 comprises a housing 501, a rotating filter element 502, a water outlet pipe 503, a partition plate 504, a lower bearing 505, a shaft rod 506, an upper bearing 507, a gear transmission assembly 508 and a motor 509, a rotating filter element 502 is arranged in the housing 501, a shaft rod 506 is installed on the upper part of the rotating filter element 502, and the shaft rod 506 is embedded with the upper bearing 507 installed on the top of the housing 501 The shaft 506 is connected to the output shaft of the motor 509 installed on the outer wall of the housing 501 through a gear transmission assembly 508. A water outlet pipe 503 is installed at the bottom of the rotating filter element 502. A partition plate 504 is installed in the housing 501 just below the rotating filter element 502. The water outlet pipe 503 penetrates the partition plate 504 and is rotatably connected to the lower bearing 505 installed on the partition plate 504. The gear transmission assembly 508 includes a large gear 508- 1 and pinion 508-2, the large gear 508-1 is installed on the shaft 506, the pinion 508-2 is installed on the output shaft of the motor 509, the large gear 508-1 is meshed with the pinion 508-2, the water outlet pipe 503 is communicated with the inside of the rotating filter element 502, a water inlet end 8 is provided on one side of the housing 501, a water outlet end 9 is provided at the bottom of the housing 501, the first branch pipe 3 and the second branch pipe 4 are both flange-connected to the water inlet end 8, and the Y-shaped pipe 6 is flange-connected to the water outlet end 9;

[0022] An observation window 13 is installed on the housing 501 . The arrangement of the observation window 13 can facilitate personnel to observe the rotation of the rotating filter element 502 .

[0023] See also Figure 3 The rotary filter element 502 includes a mesh cylinder 502-1, a partition 502-2, an upper sealing disk 502-3 and a lower sealing disk 502-4. The upper and lower ends of the mesh cylinder 502-1 are respectively installed with the upper sealing disk 502-3 and the lower sealing disk 502-4. The upper sealing disk 502-3 and the lower sealing disk 502-4 are both rotatably sealed with the inner wall of the shell 501. Partitions 502-2 are symmetrically arranged on the outer walls of both sides of the mesh cylinder 502-1. The partitions 502-2 are fixedly connected to the upper sealing disk 502-3 and the lower sealing disk 502-4 and are also rotatably sealed with the inner wall of the shell 501.

[0024] See also Figure 2-3 A slag cleaning port 10 is provided on one side of the shell 501, and a sealing cover 11 is installed on the slag cleaning port 10. The sealing cover 11 is threadedly connected to the slag cleaning port 10, and a sealing ring 12 is provided between the sealing cover 11 and the slag cleaning port 10, and the sealing ring 12 is used to improve the sealing performance.

[0025] The working principle of the utility model is:

[0026] When in use, water in the municipal water supply and drainage pipeline first enters the first branch pipe 3 or the second branch pipe 4 through the three-way valve 1, and then the first branch pipe 3 or the second branch pipe 4 enters the filter 5, and after being filtered by the filter 5, it flows back to the municipal water supply and drainage pipeline through the Y-shaped pipe 6. When the filter 5 in use needs to be cleaned or replaced, when the rotating filter element 502 in the filter 5 needs to be cleaned or replaced, the motor 509 is started, and the motor 509 drives the rotating filter element 502 to rotate through the gear transmission assembly 508, so that the rotating filter element 502 is rotated. The mesh cylinder surface at the rear rotates to the front of the mesh cylinder 502-1, and the mesh cylinder surface at the front rotates to the rear of the mesh cylinder 502-1. This can extend the single use time of the filter 5 and reduce the frequency of cleaning and replacement. When the front and rear mesh cylinder surfaces of the mesh cylinder 502-1 are used and need to be cleaned, the other branch is opened through the three-way valve 1 and the branch on this side is closed at the same time. The water in the municipal water supply and drainage pipeline can be filtered and discharged from the other branch. At this time, the personnel can open the sealing cover 11 and clean the impurities on the rotating filter element 502 on this side through the slag cleaning port 10.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filtering device for municipal water supply and drainage, comprising a three-way valve (1), a first branch pipe (3) and a second branch pipe (4), characterized in that: The opposite ends of the three-way valve (1) are respectively connected to a first branch pipe (3) and a second branch pipe (4); the other end of the three-way valve (1) is connected to a first water supply and drainage pipe (2); the other ends of the first branch pipe (3) and the second branch pipe (4) are separately connected to a filter (5); a Y-shaped pipe (6) is arranged between the two filters (5); the two symmetrical ends of the Y-shaped pipe (6) are respectively connected to the two filters (5); the other end of the Y-shaped pipe (6) is connected to the second water supply and drainage pipe (7); the filter (5) comprises a housing (50 1), a rotating filter element (502), a water outlet pipe (503), a partition plate (504), a lower bearing (505), a shaft (506), an upper bearing (507), a gear transmission assembly (508) and a motor (509), wherein a rotating filter element (502) is arranged in the housing (501), a shaft (506) is installed on the upper part of the rotating filter element (502), the shaft (506) is rotatably connected to an upper bearing (507) embedded in the top of the housing (501), and the shaft (506) is rotatably connected to a motor (509) installed on the outer wall of the housing (501). The output shafts of the rotating filter element (509) are connected via a gear transmission assembly (508); a water outlet pipe (503) is installed at the bottom of the rotating filter element (502); a partition plate (504) is installed in the housing (501) directly below the rotating filter element (502); the water outlet pipe (503) penetrates the partition plate (504) and is rotatably connected to a lower bearing (505) installed on the partition plate (504); the rotating filter element (502) comprises a mesh cylinder (502-1), a partition plate (502-2), an upper sealing disk (502-3) and a lower sealing disk (502-4), an upper sealing disk (502-3) and a lower sealing disk (502-4) are respectively installed at the upper and lower ends of the net cylinder (502-1), and the upper sealing disk (502-3) and the lower sealing disk (502-4) are both rotatably sealed with the inner wall of the outer shell (501), and partitions (502-2) are symmetrically arranged on the outer walls of both sides of the net cylinder (502-1), and the partitions (502-2) are fixedly connected to the upper sealing disk (502-3) and the lower sealing disk (502-4), and the partitions (502-2) are also rotatably sealed with the inner wall of the outer shell (501).

2. A filter device for municipal water supply and drainage according to claim 1, characterized in that: The gear transmission assembly (508) includes a large gear (508-1) and a small gear (508-2), wherein the large gear (508-1) is mounted on the shaft (506), and the small gear (508-2) is mounted on the output shaft of the motor (509), and the large gear (508-1) is meshed with the small gear (508-2).

3. A filter device for municipal water supply and drainage according to claim 1, characterized in that: The water outlet pipe (503) is communicated with the interior of the rotary filter element (502).

4. A filter device for municipal water supply and drainage according to claim 1, characterized in that: A water inlet (8) is provided on one side of the shell (501), a water outlet (9) is provided at the bottom of the shell (501), the first branch pipe (3) and the second branch pipe (4) are both flange-connected to the water inlet (8), and the Y-shaped pipe (6) is flange-connected to the water outlet (9).

5. A filter device for municipal water supply and drainage according to claim 1, characterized in that: An observation window (13) is installed on the housing (501).

6. A filter device for municipal water supply and drainage according to claim 1, characterized in that: A slag cleaning port (10) is provided on one side of the housing (501), and a sealing cover (11) is installed on the slag cleaning port (10).

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