KR100843304B1 - Water filtering apparatus with two-way flushing type screen - Google Patents

Abstract

The present invention relates to a filtration apparatus used to remove solid contaminants contained in treated water in water treatment facilities such as water and sewage treatment plants, and sewage treatment facilities, and removes contaminants attached to the filtration network inside and outside the cylindrical filtration network. By installing the entrance and exit of the filter unit, it is possible to automatically wash the filter net without performing a separate backwash in a state where the filtration device is stopped.

Through the present invention, it is possible to clean the inner and outer circumferential surfaces of the filtration network without blocking or bypassing the treated water even during the operation of the filtration device, and to prevent deformation and breakage of the cylindrical filtration network to obtain durability of the filtration device. have.

Water Treatment, Filtration, Filter Nets, Washing

Description

Water filtering apparatus with two-way flushing type screen}

The present invention relates to a filtration apparatus used to remove solid contaminants contained in treated water in water treatment facilities such as water and sewage treatment plants, and sewage treatment facilities, and removes contaminants attached to the filtration network inside and outside the cylindrical filtration network. By installing the entrance and exit of the filter unit, it is possible to automatically wash the filter net without performing a separate backwash in a state where the filtration device is stopped.

In sewage or water treatment, suspended solid contaminants in the treated water are removed through physical treatment such as sedimentation or filtration. In the case of double filtration, contaminants accumulate and adhere to the filter during the filtration process. By artificially generating a flow opposite to the above, the backwash is periodically performed to clean the contaminants accumulated in the filter network.

In other words, by temporarily blocking or bypassing the treated water passing through the filtration device, by forcibly generating a flow through the filtration network to remove the contaminants deposited in the filtration network, to block or bypass the treated water during backwashing As a result, normal operation of the filtration device becomes impossible.

Therefore, in public facilities such as water and sewage treatment plants where there is a need for continuous operation, there is a problem that a separate bypass, a pressurization facility and a preliminary filtration device for generating a reverse flow, and the like have to be provided. There was a serious problem of increased maintenance costs.

Thus, as shown in Figure 1, inside the cylindrical filter net 20, the suction pipe 30 provided with a plurality of suction rods 31 on the outer peripheral surface is installed, the suction pipe 30 to the drive motor 40 and the discharge pipe ( 13), by allowing the suction of the contaminants 99 attached to the filter network 20 to be sucked out, so that the filter network sieve filtering device to enable the automatic cleaning of the filter network 20 during the operation of the filter device without a separate backwashing process Has been developed, which has significantly solved the problems caused by the aforementioned back forces.

1 is a schematic cross-sectional view illustrating a step-by-step operation state of a conventional filter net inner circumferential rinsing filtration device, the operation principle of the conventional filter net inner circumferential rinsing filtration device shown in FIG. 1, first, the treated water introduced through the inlet 11 Is filtered while passing through the cylindrical filter network 20 is discharged through the outlet 12, the solid contaminants 99 contained in the treated water is attached to the filter network (20).

When the solid contaminants 99 are attached to the filter network 20 by a predetermined level or more, the discharge pipe 13 is opened to flow the treated water to the intake port 32, the suction rod 31, the suction pipe 30, and the discharge pipe 13. By generating the to wash and discharge the contaminants 99 attached to the inner peripheral surface of the filtering network 20, the treatment water flow for the washing action is generated by the flow rate of the treatment water itself passing through the filtration device or the discharge pipe 13 and Various applications are possible, such as connecting fluid machines such as pumps.

Here, the suction pipe 30 to which the plurality of suction rods 31 are connected is itself installed as a kind of rotation shaft to be rotated and axially reciprocated by the driving motor 40, thereby washing the entire inner circumferential surface of the filtering network 20. Is configured to.

On the other hand, such a filter net inner circumferential surface washing type filtration device has a limitation that can remove only the contaminants 99 attached to the inner circumferential surface of the cylindrical filter net 20, as described above, in the filter network as shown in Fig. The device was developed.

As shown in Figure 2, in the filter net, the outer circumferential surface washing type filtration apparatus is provided with an external suction pipe 36, an external suction port 37, etc., as well as the suction pipe 30 inside the filtering net 20, the outside of the filtering net 20. Internal and external simultaneous washing of the filtering network 20 is possible, and the internal suction pipe 30 and the external suction pipe 36 are hydraulically connected, and the external suction pipe 36 is fixed to the main body 10. Since the internal suction pipe 30 and the external suction pipe 36 cannot be rotated and reciprocated, the hollow shaft 21 is formed at the upper end of the filtering network 20 to connect the screw 34 to the hollow shaft 21. By forming the through-hole 22 in the upper part of 21 and inserting the suction pipe 30 therein, the suction pipe 30 and the external suction pipe 36 operate in a fixed state, but the filtering net 20 itself is rotated and shafted. The reciprocating direction allows the entire inner and outer circumferential surfaces of the filtering network 20 to be cleaned.

That is, the contaminants 99 sucked into the suction pipe 30 inside the filter net 20 flow into the hollow shaft 21 through the outlet hole 33 at the upper end of the suction pipe 30, and then the hollow shaft 21. It is discharged into the celebration housing 15 through the upper opening 22, the contaminants 99 sucked through the external suction pipe 36 is immediately introduced into the celebration housing 15 to be discharged.

As such, the internal and external simultaneous cleaning of the filtering network 20 is possible through the inner and outer rinsing filtration apparatus of the filtering network 20, but due to the structural characteristics of the mesh, the rigidity is lower than that of other components constituting the filtering apparatus. There is a serious problem that the filtering net 20 itself is repeatedly rotated and axial reciprocating to deform or break the filter net 20.

In addition, the inlet 11 side end portion of the filtering net 20 should secure the passage surface as much as possible, and thus it is not possible to form a separate rotating shaft, so that the contact surface between the lower end of the filtering net 20 and the main body 10 is not only difficult to be watertight. There was a serious problem that the lower end of the filter net 20 in contact with (10) easily broken.

The present invention was devised in view of the above-described problems, and the cylindrical filter net 20 is installed inside the main body 10 in which the inlet 11 and the outlet 12 are formed, and the treated water introduced into the inlet 11 is filtered. 20) After being introduced into the inside and passed through the filter network 20, the contaminants 99 are removed and discharged to the outlet 12, a plurality of entrances (80) inside and outside of the filter network 20 is installed and these The unit 80 is connected to the outside of the main body 10, the contaminant 99 attached to the inner circumferential surface and the outer circumferential surface of the filtering network 20 is discharged to the outside through the entrance portion 80, the main body 10, The rear end of the rear plate (60) is coupled, the rear end plate (60) is projected into the main body 10 and the outer coupling opening 64 is formed in the center and the compartment (61) connected to the connection pipe 17 is The cylindrical filter net 20 is configured, the rear end is opened and the front end plate 23 is provided with a front end plate 23 formed with a shaft coupling hole 24 at the front end thereof. 0) is fixedly installed in the inside, the inside of the filter net 20 is provided with a plurality of entrances 80 is formed on the outer peripheral surface and the distribution port 58 is formed on the rear end, the exterior 50 of The rear end portion is coupled to the outer coupling opening 64 of the compartment 61, a plurality of branch pipes 71 are formed, the entrance portion 80 is connected, the shaft tube 70 is connected to the feed shaft 35 is connected to the filter net ( 20) coupled to the shaft coupling member 24 of the tip plate 23, the shaft tube 70 passing through the shaft coupling member 24 is fixed to the rear end of the exterior 50, the feed shaft 35 is rotated and It is a filtration device for both sides washing water treatment system, characterized in that the shaft tube 70 and the appearance 50 rotates and reciprocates along the axial reciprocation.

In addition, a discharge tube 18 is connected to the rear end plate 60, and the compartment 61 includes a front side compartment 61a that connects the discharge tube 18, the distribution port 58, and the exterior 50. And, it is isolated and divided into the rear compartment (61b) for connecting the inner tube and the connecting pipe (17), characterized in that the filtering device for double-sided washing water treatment network, the entrance portion 80 is an annular protrusion on the outer peripheral surface A center tube 81 is formed and the spring 85 is coupled to the lower portion of the annular protrusion 82, a terminal tube 86 into which the lower end of the center tube 81 is inserted, and a locking jaw 84 on the inner circumferential surface thereof. ) Is formed and coupled to the center tube 81, and the lower end is composed of an outer tube (83) is fastened to the upper end of the end tube 86, the filtering network for both sides washing water treatment filtration device.

Through the present invention, it is possible to clean the inner and outer circumferential surfaces of the filtration network without blocking or bypassing the treated water even during the operation of the filtration device, and to prevent deformation and breakage of the cylindrical filtration network to obtain durability of the filtration device. have.

As a result, it is possible to reduce the installation and maintenance costs of the filtration facility, and through the efficient management of the filtration network can also obtain the effect of improving the filtration quality of the treated water.

The detailed configuration and operation principle of the present invention will be described with reference to the accompanying drawings.

First, Figure 3 is a perspective view showing the appearance of the present invention, as can be seen through the figure, the present invention is the main body 10 and the both ends of the main body 10, the inlet 11 and outlet 12 is formed, respectively Combination is composed of a rear end plate 60 and the conical housing 15, etc. to seal the main body 10.

4 is an exploded perspective view of the present invention, the rear end plate 60 of the present invention comprises a compartment 61 which protrudes into the main body 10 and has an exterior coupling hole 64 formed at the center thereof, and the main body 10 inside. The shaft tube 70, the exterior 50, and the filtering net 20 is installed, each component is a tubular or rod-like part is installed so that the central axis is located on the same line. .

The filter net 20 of the present invention is a cylindrical component consisting of a mesh of the outer wall is the front end is coupled to the front end plate 23 having a shaft coupling hole 24 is formed in the center, the rear end to the main body 10 A flange for fixing the filter net 20 is formed.

A distribution port 58 is formed at the rear end of the exterior 50 to enable communication between the exterior 50 and the exterior, and a plurality of entrances 80 are installed on the outer circumferential surface of the exterior 50.

A plurality of bent pipes 71 are joined to the shaft pipe 70, and the entrance part 80 is also installed at the branch pipe 71, and a feed shaft having a predetermined section screw 34 formed at the tip of the shaft pipe 70. 35 is connected.

The compartment 61, the exterior 50, the filter net 20, and the shaft tube 70, the rear end of the exterior 50 in which the outlet port 58 is formed, as shown in FIG. Rotatable to the outer coupling (64) of () is coupled to be watertight (水密), the filtering net 20 is installed concentrically with the exterior 50, the shaft tube 70 of the end plate 23 of the filtering net (20) It is coupled to the shaft tube coupling sphere 24 so as to be rotatable and watertight, and a rear end thereof is connected to a rear end of the exterior 50 through a fixing screw 59 or the like.

That is, as shown in FIG. 5, the exterior 50 having a plurality of entrances and exits 80 installed on the outer circumferential surface, and the branch pipes 71 having the entrances 80 also installed inside and outside of the filtering network 20, respectively. Located in the respective entrance portion 80 is to be installed close to or adjacent to the inner, outer peripheral surface of the filter net (20).

Therefore, when the connecting pipe 17 connected to the compartment 61 is opened or a suction force is applied to the connecting pipe 17 from a fluid machine such as a pump, the entrance part 80 inside the filtering net 20 is connected to the inner peripheral surface of the filtering net 20. Collected contaminants 99 are collected and discharged through the path of the exterior 50, the distribution port 58, the compartment 61 and the connecting pipe 17, the entrance portion 80 outside the filtering network 20 is the filtering network ( 20) The pollutants 99 attached to the outer circumferential surface are collected and discharged through the paths of the branch pipes 71, the shaft pipes 70, the compartments 61, and the connection pipes 17.

On the other hand, as can be seen through the inward enlarged portion of Figure 5, the packing 98 is installed at the movable connection point, such as the external coupling port 64 and the shaft tube coupling port 24 to ensure the watertightness.

The shaft tube 70 of the present invention does not discharge the contaminants 99 in a stationary state, but performs rotation and axial reciprocation in parallel. Therefore, the outer tube 50 fixed to the shaft tube 70 also rotates and reciprocates. Therefore, even if the filtering net 20 is fixed, it is possible to wash the entire outer peripheral surface of the filtering net 20.

Such an embodiment of the mechanical configuration to enable the rotation and reciprocal parallel movement of the shaft tube 70 is shown in Figure 5, which outlines as follows.

When the driven bevel gear 42 rotates by the drive motor 40, the driven bevel gear 43 connected thereto rotates, and the feed shaft 35 rotates.

Here, the feed shaft 35 of the portion engaged with the driven bevel gear 43 is machined into a non-circular cross section and coupled to allow the axial movement, thereby forming a screw formed in the lower predetermined section of the feed shaft 35. As the 34 is rotated by being coupled to the feed nut 16 fixed to the celebratory housing 15, the feed shaft 35 rotates in parallel with the rotational and axial linear movements, and thus the shaft tube 70 and the appearance ( 50) rotates and reciprocates.

FIG. 6 is a representative cross-sectional view of an exterior 50 and shaft 70 isolation embodiment of the present invention, the purpose of which is to isolate the flow path through the exterior 50 and shaft 70, ie, the inner circumferential surface of the filter network 20. FIG. The side entry portion 80 and the outer peripheral surface side entry portion 80 are connected to the outside in separate paths, respectively.

Through this configuration, not only the washing process for the inner circumferential surface and the outer circumferential surface of the filtering network 20 can be performed separately or selectively, respectively, and as shown in FIG. 6, external pressure is applied to any one of the shaft tube 70 and the outer surface 50. By connecting the means to apply water pressure or compressed air it is possible to ensure a more powerful cleaning force.

Isolation of the shaft tube 70 and the exterior 50 can be achieved by dividing the compartment 61 and installing a separate tube in each of the divided compartments 61a and 61b. Specific embodiments are shown.

That is, the partition 62 is formed inside the compartment 61, but the partition 62 is configured to be in close contact with the shaft pipe 70 to divide the compartment 61 into the front compartment 61a and the rear compartment 61b. In addition, by adding a discharge pipe 18 connecting the front compartment 61a and the outside, the inner peripheral surface side entrance portion 80 and the outer peripheral surface side entrance portion 80 of the filtering network 20 can be connected to the outside in separate paths, respectively. It is.

As described above, the shaft tube 70 and the outer tube 50 is a structure that is fixed through the fixing screw 59 of the rear end of the outer tube 50, and the fixing position can be adjusted, as shown in FIG. Adjust the position of the entrance and exit unit 80 installed in the branch pipe 71 and the entrance and exit unit 80 installed in the exterior 50 to be equal to each other, and pressurized air, external water, or itself to either entrance unit 80. Applying the treated water and the like and inhaling the contaminants 99 through the other entrance portion 80 can obtain a strong washing effect.

On the other hand, Figure 7 and Figure 8 is a view showing in detail the entry and exit portion 80 of the present invention, as shown in the figure, the entry and exit portion 80 by embedding an elastic body such as a spring (85) in the entry portion 80 It is possible to enhance the washing effect by allowing it to be in close contact with the filter net (20).

In the illustrated embodiment, the entrance portion 80 is composed of a central tube 81, an outer tube 83, a spring 85 and a terminal tube 86, the outer circumferential surface of the central tube 81 protruding outwardly (82) 82 is formed and the spring 85 is coupled to the lower portion of the center tube 81, the elastic force of the spring 85 is always acting outward, the locking jaw on the inner peripheral surface of the outer tube (83) The 84 is formed so that the annular protrusion 82 is coupled to the locking projection 84 to prevent the center tube 81 from being separated.

Therefore, as shown in FIG. 8, as the entrance part 80 revolves along the surface of the filter net 20, the central tube 81 is in close contact with the filter net 20 while repeatedly inserting and projecting into the end tube 86. will be.

Figure 1 is a representative cross-sectional view of the operation state of the conventional filter network inner circumferential washing filter

Figure 2 is a partial cutaway perspective view of the conventional filter, the outer circumferential surface type washing filter

3 is a perspective view of the present invention

4 is an exploded perspective view of the present invention

5 is a representative cross-sectional view of the present invention.

Figure 6 is a representative cross-sectional view of the appearance and shaft isolated embodiment of the present invention.

7 is a perspective view of the main portion excerpt of the present invention

Figure 8 is a representative cross-sectional view of the entrance operation state of the present invention

<Code Description of Main Parts of Drawing>

10: main body

11: inlet

12: outlet

13: discharge pipe

15: congratulations

16: Transfer Nut

17 connector

18: discharge tube

20: filter network

21: hollow shaft

22: through-hole

23: tip plate

24: shaft coupling port

30: suction pipe

31: suction rod

32: suction port

33: outflow hole

34: screw

35: feed shaft

36: external suction pipe

37: outside suction port

40: drive motor

42: main bevel gear

43: driven bevel gear

50: appearance

58: distribution port

59: set screw

60: rear end plate

61: compartment

62: bulkhead

64: appearance combination

70: shaft

71: branch pipe

80: entrance

81: center tube

82: annular protrusion

83: outer tube

84: jamming jaw

85: spring

86: terminal tube

98: packing

99: contaminants

Claims (3)

The cylindrical filter net 20 is installed inside the main body 10 having the inlet 11 and the outlet 12 formed therein, and the treated water introduced into the inlet 11 passes through the filter net 20 after being introduced into the filter net 20. And contaminants 99 are removed and discharged to the outlet 12, a plurality of entrances (80) are installed inside and outside the filtering network 20, these entrances 80 are connected to the outside of the main body 10 In the filtering device for water treatment in which the contaminants 99 attached to the inner circumferential surface and the outer circumferential surface of the filtering network 20 are discharged to the outside through the entrance portion 80, The rear end of the main body 10 is coupled to the rear end plate 60, the rear end plate 60 is protruded into the main body 10, the exterior coupling port 64 is formed in the center and the connection pipe 17 is connected to the compartment ( 61) is configured; A cylindrical filter net 20 having a rear end open and a front end plate 23 having a shaft coupling hole 24 formed at the front end thereof is fixedly installed in the main body 10; Inside the filter net 20, a plurality of entrances 80 are formed on the outer circumferential surface and a distribution port 58 is formed at the rear end, and the rear end of the exterior 50 is coupled to the exterior of the compartment 61. Bound to sphere 64; A plurality of branch pipes 71 configured with an access unit 80 are connected, and a shaft pipe 70 having a feed shaft 35 connected to a distal end thereof is coupled to the shaft pipe coupling hole 24 of the filter plate 20 and the front end plate 23. , The shaft tube 70 passing through the shaft tube coupler 24 is fixed to the rear end of the appearance 50; Filtration network double-sided washing water filtering device, characterized in that the shaft tube 70 and the outer appearance (50) rotates and reciprocates as the feed shaft (35) rotates and axially reciprocates. A discharge tube (18) is connected to the rear end plate (60); The compartment 61 has a front compartment 61a connecting the discharge pipe 18, the distribution port 58, and the exterior 50, and a rear compartment connecting the inside of the shaft pipe 70 and the connection pipe 17. Filtering device for both sides washing water treatment, characterized in that the isolation and partitioning (61b). According to claim 1 or 2, the entrance portion 80 is formed with an annular projection (82) on the outer peripheral surface and the center tube (81) to which the spring (85) is coupled to the lower portion of the annular projection (82); A terminal tube 86 into which the lower end of the central tube 81 is inserted; Filtering device for washing on both sides of the filter network, characterized in that the locking jaw 84 is formed on the inner circumferential surface is coupled to the center tube 81, the lower end is composed of an outer tube (83) fastened to the upper end of the end tube (86).

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