KR20120114791A - Self cleaning strainer - Google Patents

Self cleaning strainer Download PDF

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Publication number
KR20120114791A
KR20120114791A KR1020110032548A KR20110032548A KR20120114791A KR 20120114791 A KR20120114791 A KR 20120114791A KR 1020110032548 A KR1020110032548 A KR 1020110032548A KR 20110032548 A KR20110032548 A KR 20110032548A KR 20120114791 A KR20120114791 A KR 20120114791A
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KR
South Korea
Prior art keywords
strainer
suction
rotating shaft
hollow rotating
foreign matter
Prior art date
Application number
KR1020110032548A
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Korean (ko)
Inventor
최영환
최정주
Original Assignee
(주)신일에이스
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Publication date
Application filed by (주)신일에이스 filed Critical (주)신일에이스
Priority to KR1020110032548A priority Critical patent/KR20120114791A/en
Publication of KR20120114791A publication Critical patent/KR20120114791A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/085—Funnel filters; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/70—Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D29/705—Regenerating the filter material in the filter by forces created by movement of the filter element by compression of compressible filter medium, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/08—Regeneration of the filter
    • B01D2201/081—Regeneration of the filter using nozzles or suction devices

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Cleaning In General (AREA)

Abstract

PURPOSE: A self-cleaning strainer is provided to improve the washing capability of the strainer and to improve the suction force of a suction pipe by minimizing the suction pipe. CONSTITUTION: A self-cleaning strainer includes a body(15), a mesh-shaped circular strainer(70), and a hollow rotary shaft. The body includes a fluid inlet(10) and a fluid outlet(20). The circular strainer is formed in the receiving part of the body. The hollow rotary shaft is installed in the body. The hollow rotary shaft includes a plurality of suction pipes. The suction pipes draw in deposited impurities deposited from the strainer. The hollow rotary shaft is vertically installed at the center shaft of the body and rotates by a motor(40).

Description

Self cleaning strainer

The present invention relates to a self-cleaning strainer, and more particularly to a self-cleaning strainer that can remove the foreign matter attached to the strainer through the suction pipe automatically without shutting down the equipment.

In order to remove foreign substances (impurities, sludges, contaminants, etc.) contained in the flow fluid, a mesh-type filter or strainer is used. In the case of the strainer connected to the pipe, it includes an inlet pipe and an outlet pipe, it is configured to filter the foreign matter to the strainer by installing a strainer in the form of a big net between the inlet pipe and the outlet pipe.

If the foreign matter attached to the strainer is saturated, replace the filter with the line stopped, and use the method such as washing the strainer or using reverse flow. For example, the Republic of Korea Patent No. 10-0768080, a technology such as 'filter device with a screen brush' is known.

A further improvement over the above technique is a self-cleaning filter or strainer capable of automatically recovering foreign matter attached to the strainer without stopping the flow of the pipe. Examples include 'fluid filtering device' of Republic of Korea Patent Publication No. 10-2010-0009164 and 'improved self-cleaning filter' of Republic of Korea Patent Registration 10-0905698.

In the Republic of Korea Patent Registration 10-0905698 'improved self-cleaning filter, the turbulence generator 400 is attached to increase the suction efficiency of the foreign matter attached to the filter to promote the generation of turbulence in the filter and the elastic means 316 and A nozzle 310 including a suction pipe portion 315 is disclosed.

The above technique can be rotated at high speed to form turbulent flow, but when rotated at high speed, centrifugal force acts so that foreign matters are more attached than separated from the screen filter, and the suction efficiency of foreign matters decreases due to high speed rotation. do. In addition, since the nozzle has elastic means, the nozzle and the screen filter come into contact with each other, which causes damage to each other, which reduces suction efficiency.

All of the above techniques include only a rotating motor, so that foreign matters cannot be completely removed from the filter, and the foreign matters larger than the suction pipe have limitations.

1. KR 10-0768080, 'Filter unit with screen brush' 2.KR 10-2010-0009164, 'Fluid filtering device' 3.EN 10-0905698, 'Improved self-cleaning filter' 4. JP 2004-283805

The present invention relates to a self-cleaning strainer for automatically removing the foreign matter attached to the strainer without interrupting the flow of the pipe for cleaning and maintenance, to increase the foreign matter removal efficiency.

The self-cleaning strainer of the present invention to solve the above problems is a body having fluid inflow and outflow pipes each having an inlet pipe and outlet pipe, a strainer in the form of a net in the receiving portion in the body, installed inside the body and settled in the strainer A self-cleaning strainer comprising a hollow rotating shaft having a plurality of suction pipes for sucking foreign matters, the hollow rotating shaft being vertically installed while passing through the center of the body to be rotated by a motor; It characterized in that it comprises a length adjusting means for moving the hollow shaft in the vertical direction.

In addition, the length adjusting means of the present invention and the hydraulic cylinder for vertical reciprocating motion; A shaft fork for transmitting the reciprocating motion of the hydraulic cylinder to the hollow rotating shaft; A sleeve connected to the shaft fork and fastened to one end of the hollow shaft; One end of the solid rotating shaft and the hollow rotating shaft is characterized in that the pin or spline form.

In another aspect, the present invention and each suction pipe connected to the hollow rotating shaft; The suction tube may include an elastic member having a solid shape at one end of the suction tube to collect foreign substances attached to the strainer to improve suction efficiency of the suction tube.

Finally, the present invention provides a body that can accommodate a certain amount of foreign matter away from the strainer, which is bulky or heavy, a hollow rotating shaft passing through the center of the body, a suction hole formed at one end of the hollow rotating shaft, and the suction Including a suction valve that can open and close the hole, it is characterized in that it is also possible to discharge foreign substances collected in the lower part of the body or bulky and heavy materials that cannot be sucked into the suction pipe.

The self-cleaning strainer according to the present invention can be used semi-permanently as it can automatically remove debris during system operation without stopping the pipe line for cleaning and maintenance.

In addition, the combination of the rotary motor and the hydraulic cylinder can completely remove the foreign matter attached to the entire area of the inner wall of the strainer, and by improving the suction power by minimizing the suction pipe can improve the cleaning ability of the strainer.

In addition, the present invention has the advantage that can be expected a more effective suction effect due to the elastic member of the solid shape at one end of the suction pipe.

Finally, the present invention can collect the large foreign matter that can not be sucked into the suction pipe, the foreign matter separated during the cleaning process can be discharged to the outside.

1 is a perspective view of one embodiment of a self-cleaning strainer of the present invention
2 is a cross-sectional view of the strainer
Figure 3 is an internal configuration of the state in which the body and the top cover half cut
Figure 4 is an internal configuration of a state in which the body and the strainer half cut
5 is a block diagram showing an embodiment of a suction pipe
Figure 6 is a block diagram showing the vertical direction of the hollow shaft rotation

Hereinafter, each preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, a detailed description of related well-known technologies or configurations may unnecessarily obscure the subject matter of the present invention. If so, the detailed description thereof will be omitted.

1 is a perspective view of a self-cleaning strainer which is an embodiment of the present invention, Figure 2 is a cross-sectional view of the self-cleaning strainer showing the internal configuration, Figure 3 is an internal configuration in a state in which the body and the top cover half cut, Figure 4 5 is an internal configuration diagram in a state in which the body and the strainer are cut in half, Figure 5 is a block diagram showing an embodiment of the suction pipe, Figures 6 and 7 is a block diagram showing a vertical axis of the hollow shaft, Figure 8 is a volume Is an operating state diagram of a suction valve for discharging large foreign matter.

First, as shown in Figures 5 and 6, the present invention is composed of a sleeve 52, the shaft fork 51 and the hydraulic cylinder 50 is fastened to one end of the hollow rotating shaft 43 and the suction pipe 45 and Technical structure of the self-cleaning strainer to remove the foreign matter more effectively by the structure that is movable in the vertical direction of the hollow rotary shaft 43 and the elastic member 80 attached to one end of the suction pipe (45).

First, as shown in FIG. 1, the self-cleaning strainer according to the present invention is largely fastened to a body 15 having an inlet tube 10 and an outlet tube 20 and an upper portion of the body 15, and having a motor 40. And an upper cover 30 supporting the hydraulic cylinder 50, a vent valve 60 fastened to the lower portion of the body 15, and fastened to a vent pipe 61 and one end of the vent pipe 61.

The body 15 is preferably formed as a container having a receiving portion therein. The shape of the body 15 is formed in a cylindrical shape, the inlet pipe 10 is on the upper side of one side portion, the outlet pipe 20 is the other Form at the bottom of the side.

Since the interior of the body 15 is used as a fluid pipeline, the inlet pipe 10 and the outlet pipe 20 are flanged to be connected to a normal pipeline.

The upper cover 30 is fastened by forming an upper portion and a flange portion of the body 15, and is fastened with the motor 30 for rotating the hollow rotating shaft 43 through the motor support member 41, and the hollow rotating shaft ( Support the hydraulic cylinder 50 for moving 43 in the vertical direction.

As shown in FIGS. 2 to 4, the internal configuration of the body 15 is largely divided into an upper frame 46 and a lower frame 47 fastened to the diaphragm 44. The cylindrical frame strainer 70 is supported by the lower frame 47. In addition, the hollow rotating shaft 43 is fastened to the suction pipe 45 across the inner center of the body 15 to discharge the foreign substances sucked from the suction pipe 15 to the vent pipe 61, and the motor rotating the hollow rotating shaft 43. 40, the length adjusting means 55 for moving the hollow rotating shaft 43 in the vertical direction.

A strainer 70 is formed in a cylindrical shape in the inner accommodating part of the body 15. The strainer 70 is configured in a cylindrical shape so as to collect the optimum foreign matter. This is to increase the contact surface with the fluid flowing.

The fluid is introduced into the inlet pipe on one side of the body 15 and the clean fluid caught by the foreign matter through the strainer 70 is discharged to the outlet pipe 20 provided on the lower side of the other side of the body 15.

A hollow rotating shaft 43 is formed at the inner center of the body 15. The hollow rotating shaft 43 is formed in the form of a vertical pipe with an inner hollow portion. And it has a plurality of suction pipes 45 radially to be close to the strainer 70.

The motor 40 is coupled to the solid rotating shaft 42 via the coupler 48, and the solid rotating shaft 42 is coupled to the hollow rotating shaft 43 via the coupler 48. Therefore, the hollow rotating shaft 43 is rotated by the motor 40, the plurality of suction pipes 45 connected to the hollow rotating shaft 43 is sucked while rotating the foreign matter attached to the inner wall of the strainer 70.

The hollow rotating shaft 43 is connected to a pressure source lower than the pressure in the body 15 therein so that the suction pipes 45 may suck foreign substances by the intermittent action of the pressure source (opening of the valve valve 60). To help.

Since the plurality of suction pipes 45 are installed to be close to the inner wall of the strainer 70, the suction pipes 45 are filtered from the fluid and suck the foreign matter deposited on the inner wall of the strainer 70.

Figure 5 shows a partial enlarged view of the strainer 70 and the suction pipe 45, showing in detail the suction path of the foreign matter. Foreign matter is deposited on the inner wall side of the strainer 70 shown in FIG. 5, and as the vent valve 60 is opened, low pressure is formed in the vent pipe 61, the hollow rotating shaft 43, and the suction pipe 45. (70) Inhale the foreign matter precipitated on the inner wall.

The foreign matter deposited on the inner wall of the strainer 70 may be precipitated for a long time and may not be easily separated from the strainer 70. As a method for solving this problem, the elastic member 80 is fastened to one side of the suction pipe 45 to be in close contact with the strainer 70.

The elastic member 80 includes a brush-shaped plastic, rubber, silicone or soft material.

The foreign matter precipitated on the strainer 70 by the elastic member 80 is separated from the inner wall of the strainer 70, and the separated foreign matter 90 is collected around the suction pipe 45 by the solid shape. This improves the suction efficiency of the foreign matter.

The lower part of the body (15) is a heavy foreign material, foreign matter or other foreign matter that is not sucked into the suction pipe during the self-cleaning process is collected, these foreign matters when the vent valve (60) is opened through a hole drilled in the vent pipe (61) It is introduced into the vent pipe and discharged to the outside.

6 is a block diagram showing an embodiment of moving the hollow rotating shaft 43 in the vertical direction. If a large number of suction pipes (45) is installed, the suction force to suck the foreign matter falls and can not be self-cleaning. Therefore, in consideration of the optimal suction force, the number of installation of the suction pipe 43 is bound to be limited. Therefore, it is difficult to wash the entire inner wall of the strainer 70.

In order to solve the above problems, the length adjusting means 55 which can move the hollow rotating shaft 43 in the vertical direction is disclosed.

The length adjusting means 55 is connected to the shaft fork 51 and the shaft fork 51 for transmitting the reciprocating motion of the hydraulic cylinder 50 and the hydraulic cylinder 50 to the hollow rotating shaft 43 and the hollow rotating shaft ( 43) includes a sleeve 52 fastened to one end. In addition, one end of the solid rotary shaft 42 and the hollow rotary shaft 43 is configured in the form of pins or splines, respectively, is connected to the slip joint that can correspond to the length adjustment.

Figure 7 is a block diagram showing another embodiment for moving the hollow rotating shaft 43 in the vertical direction.

Coupled to the coupler support 49 fastened to the body 15 and one end of the coupling support 49 while supporting the coupler 48 and screwed with a coupler 48 and one end having a nut shape inside the hollow shape. Disclosed is a structure in which the hollow rotating shaft 43 is rotated and simultaneously movable in the vertical direction in the configuration of the hollow rotating shaft 43.

The plurality of suction pipes 45 may be minimized by the length adjusting means 55. In order to increase the washing of the strainer 70, a high suction force is essential, if there are many suction pipes 45 installed there is a limit to increase the suction force. Therefore, by providing the length adjusting means 55 to minimize the suction pipe 45 has the effect of maintaining a high suction force.

8 is an operational state diagram of the suction valve 62 for discharging bulky foreign matter. The foreign matter 90 collected through the strainer 70 is collected to increase the volume, or very large foreign matter is collected under the strainer body.

In order to discharge the foreign matter 90, which is bulky and heavy or separated from the strainer 70, a body 15 which can accommodate a predetermined amount, a hollow rotating shaft 43 penetrating the center of the body 15, and And a suction hole 63 formed at one end of the hollow rotating shaft 43 and a suction valve 62 capable of opening and closing the suction hole 63.

The suction valve 62 and the suction hole 63 of the hollow rotating shaft 43 to match the structure to discharge the foreign matter 90, the operation of the suction valve 62 can be connected to the operator or the actuator. .

Referring to the operation of the self-cleaning strainer of the present invention in the above configuration as an embodiment as follows.

The fluid flowing at a predetermined pressure through the inlet pipe 10 flows into the receiving portion of the body 15 and passes through the strainer 70 and is discharged to the outlet pipe 20. During the above process, the foreign matter 90 contained in the fluid is collected on the inner wall of the strainer 70.

If the filtering process is continued, a large amount of foreign matter is precipitated on the inner wall of the strainer 70 and the pressure of the inlet pipe 10 and the pressure of the outlet pipe 20 are different.

In the differential pressure, if the differential pressure is greater than or equal to the predetermined value through the differential pressure sensor, it is determined that the foreign matter more than the appropriate value is collected in the strainer 70, and the motor 40 and the vent valve 60 are operated through the control device.

By the above operation, the vent pipe 61, the hollow rotating shaft 43, and the suction pipe 45 maintain a low pressure to form a pressure lower than the internal pressure of the body 15, thereby removing the foreign matter 90 through the suction pipe 45. Inhale.

Foreign substances sucked in are discharged to the outside through the vent pipe 61 and the band valve 60.

In addition, the suction pipe 45 is rotated by the rotation of the motor 40 to suck the foreign matter precipitated on the inner wall of the strainer 70.

Thereafter, after a predetermined time, the hydraulic cylinder 50 is operated by the control signal. The suction pipe 45 is moved in the vertical direction by the linear reciprocating motion of the hydraulic cylinder 50. The suction pipe 45 rotates by the motor 40 while washing the entire inner wall of the strainer 70 as it moves vertically by the hydraulic cylinder 50.

After performing a series of operations, the operation of the motor 40 and the hydraulic cylinder 50 is stopped by the control signal, and the vent valve 60 is closed.

 As such, the control command of the control device is repeated to automatically clean the foreign matter collected by the strainer 70.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto, and it should be understood by those of ordinary skill in the art to which the present invention relates, Of course, various modifications and variations are possible within the scope of the equivalent.

10: inlet pipe, 15: body, 20: outlet pipe, 30: upper cover, 40: motor, 41: motor support member, 42: solid rotary shaft, 43: hollow rotary shaft, 44: diaphragm, 45: suction tube, 46: upper Frame, 47: lower frame, 48: coupler, 50: hydraulic cylinder, 51: shaft fork, 52: sleeve, 55: length adjusting means, 60: vent valve, 61: vent pipe, 70: strainer, 80: elastic member, 90: foreign matter

Claims (4)

A body 15 having an inflow pipe 10 and an outflow pipe 20 through which fluid flows in and out, respectively, a circular strainer 70 having a mesh shape in a receiving portion in the body 15, and inside the body 15. In the self-cleaning strainer comprising a hollow rotating shaft 43 is installed having a plurality of suction pipes 45 for sucking the foreign matter precipitated in the strainer 10,
The hollow rotating shaft 43 is installed perpendicular to the central axis of the body (15) to rotate by the motor (40);
Length adjusting means (55) for moving the hollow rotating shaft (43) in the vertical direction;
Self-cleaning strainer comprising a suction valve 62 for discharging the foreign matter 90 that can not be discharged to the suction pipe 45
The method of claim 1,
The length adjusting means 55,
A hydraulic cylinder 50 for vertical reciprocating motion;
A shaft fork 51 for transmitting the reciprocating motion of the hydraulic cylinder 50 to the hollow rotating shaft 43;
A sleeve 52 connected to the shaft fork 51 and fastened to one end of the hollow rotating shaft 43;
Self-cleaning strainer, characterized in that one end of the solid rotary shaft 42 and the hollow rotary shaft 43 is connected in the form of pins or splines, respectively
The method of claim 1,
Each suction pipe 45 connected to the hollow rotating shaft 43;
Self-cleaning strainer, characterized in that the suction pipe 45 further includes a resilient member 80 in the form of a rear portion to attract foreign matter attached to the strainer 70 to improve the suction efficiency of the suction pipe 45.
The method of claim 1,
A body 15 which is bulky and heavy, or which can accommodate a certain amount of the foreign matter 90 separated from the strainer 70;
A hollow rotating shaft 43 penetrating the center of the body 15;
A suction hole 63 formed at one end of the hollow rotating shaft 43;
Including a suction valve 62 that can open and close the suction hole 63, a foreign substance 90 that is bulky and heavy, which cannot be sucked into the suction pipe 45, or a foreign substance collected in the lower part of the body 15. Self-cleaning strainer, characterized in that the discharge
KR1020110032548A 2011-04-08 2011-04-08 Self cleaning strainer KR20120114791A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110032548A KR20120114791A (en) 2011-04-08 2011-04-08 Self cleaning strainer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110032548A KR20120114791A (en) 2011-04-08 2011-04-08 Self cleaning strainer

Publications (1)

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KR20120114791A true KR20120114791A (en) 2012-10-17

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103527371A (en) * 2013-11-06 2014-01-22 安庆泰邦机械科技有限责任公司 Full-automatic backwash filter
KR101479397B1 (en) * 2013-03-26 2015-01-05 김홍노 Filtration apparatus
KR101511765B1 (en) * 2014-06-24 2015-04-14 코오롱환경서비스 주식회사 Automatically washing device for filtering food wastewater in incinerator system
KR101985292B1 (en) * 2018-08-21 2019-06-05 주식회사 에스케이에프엠 Water purification device with filter automatic cleaning function
CN110314887A (en) * 2019-06-14 2019-10-11 江西苏峡农业科技有限公司 A kind of rhizoma polygonati cleaning spin-drying device
CN112547721A (en) * 2020-12-04 2021-03-26 中铁建设集团建筑发展有限公司 Device for automatically cleaning sewage pipeline

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101479397B1 (en) * 2013-03-26 2015-01-05 김홍노 Filtration apparatus
CN103527371A (en) * 2013-11-06 2014-01-22 安庆泰邦机械科技有限责任公司 Full-automatic backwash filter
CN103527371B (en) * 2013-11-06 2015-07-15 安庆泰邦机械科技有限责任公司 Full-automatic backwash filter
KR101511765B1 (en) * 2014-06-24 2015-04-14 코오롱환경서비스 주식회사 Automatically washing device for filtering food wastewater in incinerator system
KR101985292B1 (en) * 2018-08-21 2019-06-05 주식회사 에스케이에프엠 Water purification device with filter automatic cleaning function
CN110314887A (en) * 2019-06-14 2019-10-11 江西苏峡农业科技有限公司 A kind of rhizoma polygonati cleaning spin-drying device
CN112547721A (en) * 2020-12-04 2021-03-26 中铁建设集团建筑发展有限公司 Device for automatically cleaning sewage pipeline

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