KR101791184B1 - Non-powered auto-cleaning filter device, method for assembling the device, method for auto-cleaning using the same - Google Patents

Abstract

The present invention relates to a cleaning assembly of a non-powered auto-cleaning filtering device capable of effectively removing foreign substances stacked in a filter by rotating an impeller and a cleaning means using a flow force of raw water, a method for assembling the same and a method for automatically cleaning the filter using the same. The cleaning assembly of a non-powered auto-cleaning filtering device according to the present invention comprises: an elevation axis driven upward and downward; and a cleaning unit coupled to the elevation axis to be rotatable, rotated with an impeller and cleaning foreign substances stacked on the internal surface of the filter.

Description

TECHNICAL FIELD [0001] The present invention relates to a cleaning means assembly, a method of assembling the same, and an automatic filter cleaning method using the same. [0002]

The present invention relates to a cleaning means assembly for a non-powered filter automatic cleaning device capable of effectively removing impurities accumulated on the inside of a filter by rotating an impeller and cleaning means associated therewith using fluid power of raw water, And a cleaning method.

In general, most of the refining and chemical industries, thermal and nuclear power generation industries, and water treatment industries require the transfer of fluid in the production process and facilities.

In this case, whether or not the presence of the foreign material in the fluid to be used affects the yield and performance of the production process, and also determines the internal contamination of the piping and the mechanical elements, thereby greatly affecting the performance of the system. Therefore, these fluids must be supplied in sufficiently purified high-purity fluids.

However, when the pressure of the raw water is insufficient, the filter not only has a low efficiency of the filter, but also the mesh of the filter is clogged with time.

If the filter hole is blocked, the filtering system is stopped, the filter must be cleaned or replaced, and then the filter must be operated again for operation. In case of continuous operation due to the characteristics of the system, May not be able to be replaced.

Further, when the filter replacement operation is required, the replacement of the filter increases the cost, which increases the burden of the maintenance cost.

At present, an automatic washing and filtering system that solves the above-mentioned problems is manufactured and sold. The types are divided into a pressure backwashing system, a mechanical washing system, and a pressure difference system using a Bernoulli system.

In the case of the back pressure cleaning method, a part of the filtrate is flowed back to the filter through the pump and the cylinder, thereby cleaning the foreign matters filtered by the filter. In this method, in order to secure pressure backwash driving force, There is a problem that energy consumption and reliability are lowered.

In addition, the backwashing method has a disadvantage that only a part of the foreign matter is washed and the washing performance is insufficient, and also the operation of the system must be stopped during washing.

In order to solve such a problem, there is a method of solving the problem of stopping the system operation by rotating the operation filter chamber and the cleaning filter chamber by installing a multistage filter chamber. However, in such a case, the system becomes complicated, And the like.

Next, the mechanical cleaning method requires a driving device that rotates the filter, and scrapes and removes foreign matters filtered through a scraper or a brush installed on the inside or outside of the filter. .

In addition, there is a problem that the reliability is lowered due to an increase in energy consumption and a driving device. Conversely, there is also a method of rotating the scraper or brush, but this also causes the same problem.

In addition, the Bernoulli method is a method using Bernoulli's principle in which a pressure is lowered when a disk to be filtered flows up and down at a high speed by moving a disc of a disk having a predetermined gap to the inside of the filter.

In this method, when the pressure inside the filter is temporarily lowered, it is an automatic washing method in which the foreign matter filtered by the filter is desorbed while the washing water flows inward from the outside of the filter.

In this case, as the disk moves downward, the flow area of the raw water is temporarily reduced to increase the load of the pump to reduce the load of the pump, and to temporarily supply irregular filtrate, Which causes deterioration and deteriorates the cleaning ability.

Korean Patent No. 10-0530097 (Nov. 14, 2005) Korean Patent No. 10-1169436 (2012.07.23.)

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an impeller capable of effectively removing foreign matter, scale, and fouling accumulated on the inside of a filter by rotating a washing brush or a cleaning rod through various mechanisms connected to the impeller, And a method of assembling the same, and a method of automatically cleaning a filter using the assembly.

According to an aspect of the present invention, there is provided a cleaning device assembly for a non-motorized automatic cleaning and filtering apparatus, including: a lifting shaft driven up and down; And a cleaning unit rotatably coupled to the lifting shaft and rotated together with the impeller to clean foreign matter accumulated on the inner surface of the filter.

Here, the cleaning unit may include cleaning means for cleaning the foreign matter accumulated on the inner surface of the filter, support shaft for supporting the cleaning means, arm for supporting the support shaft to be rotatable, And a rotating frame which is fitted to the impeller and is connected to the impeller.

At this time, a fixing ring may be provided on the support shaft so as to restrict the upward and downward movement of the cleaning means.

Further, the cleaning means assembly according to the present invention may further include a connector rotatably coupled to the lifting shaft and interconnecting the body of the rotating frame and the impeller.

Further, a protective guide having a larger diameter than the impeller and coupled to the outer peripheral portion of the connector may be further provided.

Here, a protruding tube portion may be formed at an inner center of the impeller so as to extend through the lifting shaft and to be inserted into the inside of the connector.

At this time, a plurality of fixing protrusions protruding downward are formed on the lower end of the connector, and a fixing hole for press fitting the fixing protrusions may be formed on the bottom surface of the impeller positioned around the protruding tube portion.

A plurality of coupling protrusions may be formed at an upper end of the connector, and a plurality of coupling holes may be formed at a lower end of the rotation frame to detachably engage with the coupling protrusions.

A plurality of such cleaning units may be detachably connected along the axial direction thereof.

At this time, a plurality of coupling grooves are formed at the upper end of the rotary frame body of the lowermost stage cleaning unit connected to the connector, and at the lower end of the rotary frame body of another cleaning unit connected to the upper portion of the lowermost stage cleaning unit, A plurality of engaging projections engageable with each other can be formed.

Here, the cleaning means may be a cleaning brush formed by winding a plurality of buried wires in a cylindrical shape several times, or a cleaning rod having a plurality of cleaning projections formed on a cylindrical outer circumferential surface.

A friction reducing means may be provided between the contact surface of the body of the rotary frame and the up / down shaft or between the contact surface of the up / down shaft and the impeller.

In addition, a fixing ring for fixing the position of the impeller may be installed on the lifting shaft located at the lower end of the impeller.

The method of assembling the cleaning means assembly of the non-motorized automatic cleaning and filtering apparatus according to the present invention may include the steps of: (a) fitting the cleaning unit in the assembled state into the lifting shaft; (b) fitting the impeller into the lifting shaft and engaging the impeller with the cleaning unit.

Here, as a step before the cleaning unit of the step (a) is coupled, it may further comprise a step of engaging the friction reducing means with the lifting shaft.

At this time, the assembling of the cleaning unit in the step (a) includes the steps of inserting a support shaft into both arms of the rotary frame and fixing the support ring to the support shaft; And fixing the support shaft through the fixing ring after fitting the cleaning means into the support shaft.

The method may further include inserting a connector having a protective guide assembled therein between the step (a) and the step (b) by inserting the connector into the elevating shaft.

The method may further include coupling the friction reducing means to the lifting shaft after the impeller of the step (b) is coupled to the lifting shaft.

The method may further include fixing the position of the impeller by coupling the stationary ring to the elevation shaft after step (b).

Meanwhile, the automatic filter cleaning method using the cleaning means assembly of the non-powered automatic cleaning filter apparatus according to the present invention comprises the steps of: (a) (b) when the set automatic cleaning time has been reached, opening the foreign matter discharge valve and lowering the elevation shaft through the driving means to introduce the impeller and the cleaning unit into the filter; (c) if the impeller rotates due to the flow of the raw water, rotating the cleaning unit with the rotational force to clean the foreign matter accumulated inside the filter; And (d) returning the elevation shaft to its original position by raising the elevation shaft through the driving means when the removal of the foreign substances in the filter is completed.

In the step (a), the automatic cleaning time of the filter may be determined according to whether the pressure difference between the filter before and after the filter reaches the set value, or may be determined according to a predetermined time period.

In the step (c), the foreign matter cleaning operation of the filter by the cleaning unit may be repeatedly performed by driving up and down the lifting shaft.

According to the structure of the cleaning means assembly of the automatic powerless filter cleaning device of the present invention, the impeller is rotated using the flow force of the raw water flowing into the inlet of the automatic filter cleaning device, the rotation force of the impeller is received, Scraping, scaling, fouling, etc., accumulated on the inside of the filter can be effectively removed mechanically through a cleaning brush or a cleaning rod.

In addition, the cleaning unit for cleaning the filter includes a cleaning means such as a cleaning brush or a cleaning rod, and a support shaft and a rotary frame. When the cleaning unit is assembled, the support shaft is passed through the arm of the rotary frame, The assembly of the cleaning unit is completed through a simple operation of fastening and fixing the fixing ring after inserting the fixing ring, so that the assembly can be performed quickly and easily.

In addition, since the impeller has a connector detachably connecting the body of the rotary frame, it is possible to transmit the rotational force of the impeller to the rotary frame through the connector to effectively clean the filter through the cleaning unit, There is an advantage that the connector can be separated from the body of the rotating frame to quickly and easily perform the replacement operation of the impeller.

Further, since the impeller protecting guide having a diameter larger than that of the impeller is provided around the connector, it is possible to prevent the impeller from being directly interfered with the inner surface of the filter during the filter cleaning operation. Therefore, There is an advantage that breakage can be prevented in advance.

Further, the impeller can be easily separated from and replaced with the connector through a coupling or separation operation between the fixing protrusion formed at the lower end of the connector and the fixing hole formed at the bottom surface of the impeller, So that it can be easily fastened and separated.

In addition, a coupling groove is formed at the upper end of the body of the rotary frame of the cleaning unit connected to the connector, and a plurality of detachably engageable engaging grooves are formed at the lower end of the rotary frame of another cleaning unit connected to the upper portion of the cleaning unit A plurality of cleaning units can be connected in the axial direction. Therefore, it is possible to extend the length of the cleaning unit in accordance with the length of the filter, and without moving the cleaning unit repeatedly up and down, There is an advantage in that the filter can be washed at a time.

Further, as a cleaning means for cleaning the filter, a cleaning brush formed by winding a plurality of buried wires in a cylindrical shape several times or a cleaning rod having a plurality of cleaning projections formed on the outer circumferential surface of a cylindrical plastic molded article is applied, The detachment of the cleaning means on the support shaft of the cleaning means can be facilitated and the assembling property can be improved and the manufacturing cost of the cleaning means can be reduced.

Further, since a separate friction reducing means is provided between the contact portion between the body of the rotary frame and the elevating shaft and the contact portion between the impeller and the elevating shaft, friction between the contact portions is reduced through the friction reducing means during the rotation operation of the impeller and the cleaning unit There is an advantage that a smooth rotation driving force of the cleaning unit can be secured.

Further, when assembling the cleaning means assembly, the assembling can be completed by a simple process in which the cleaning unit, the connector, the protective guide, and the impeller are successively fitted to the lower end of the lifting shaft, and then fixed through the fixing ring. .

When the differential pressure before and after the filter reaches the set value, the impeller and the cleaning unit are lowered through the driving means to flow into the filter, the impeller is rotated through the flow of the raw water flowing from the lower portion of the filter, Since the foreign matter on the side surface of the filter can be easily removed through the connected cleaning unit, the cleaning power can be secured by the non-motive power, and the energy saving effect can be obtained.

1 is a perspective view showing a structure of a cleaning means assembly for a non-powered filter automatic cleaning apparatus according to the present invention.
Figure 2 is an exploded perspective view of Figure 1;
Fig. 3 is a sectional view of Fig. 1; Fig.
4 is a perspective view showing a detailed structure of an elevating shaft according to the present invention;
5 is an exploded perspective view of a cleaning unit according to the present invention;
6 is an assembled sectional view of Fig.
7 is a perspective view showing the structure of the cleaning rod according to another embodiment of the cleaning means according to the present invention
8 is a detailed view showing the structure of the impeller according to the present invention in detail;
9 is a perspective view showing the structure of the impeller protection guide according to the present invention.
10 is a cross-sectional view showing the cross-sectional structure of FIG. 9;
11 is a perspective view showing a structure of an impeller protection guide according to another embodiment of the present invention.
12 is a cross-sectional view showing the cross-sectional structure of FIG. 11;
13 is a perspective view showing a detailed structure of a connector according to the present invention;
Fig. 14 is a sectional view of Fig. 13; Fig.
15 is a perspective view showing a state in which an impeller protection guide and a connector are assembled.
16 is a perspective view showing a detailed structure of a bushing as an example of the friction reducing means according to the present invention.
Fig. 17 is a sectional view of Fig. 16; Fig.
Fig. 18 is an exemplary view showing a state in which a plurality of cleaning units according to the present invention are connected in the axial direction
Figure 19 is a flow chart illustrating the assembly sequence of the cleaning means assembly according to the present invention;
20 is a flow chart for explaining the assembling procedure of the cleaning unit according to the present invention;
Figure 21 is a sectional view showing the cleaning means assembly according to the present invention before operation.
22 is a sectional view showing the process of cleaning the inner surface of the filter by operating the cleaning means assembly according to the present invention;
23 is a flowchart sequentially illustrating a method of automatic filter cleaning using a cleaning means assembly according to the present invention;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, preferred embodiments of a cleaning means assembly structure for a non-motorized automatic cleaning filter apparatus of the present invention, a method for assembling the same, and a method for automatically cleaning a filter using the cleaning means assembly will be described in detail with reference to the accompanying drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

FIG. 1 is a perspective view showing a structure of a cleaning means assembly for a non-powered automatic washing and filtering apparatus according to an embodiment of the present invention, and FIGS. 2 and 3 are respectively an exploded perspective view and a sectional view of FIG.

Referring to FIGS. 1 to 3, the cleaning means assembly for a non-motorized automatic cleaning and filtering apparatus according to the present invention includes a lifting shaft 110 for vertically moving up and down, a cleaning unit 120 for cleaning the filter, A protection guide 130 installed to protect the impeller 150 and a connector 140 connecting the cleaning unit 120 and the impeller 150. The impeller 150 is rotated by the hydraulic force of the raw water, .

The lifting shaft 110 is connected to the driving unit 205 installed at the upper end of the automatic power cleaning and filtering device 200 and the impeller 150 including the cleaning unit 120 is detachably coupled to the lower end of the lifting shaft 110 )

The lifting shaft 110 is driven to move up and down in the vertical direction by driving the driving unit 205 to draw or draw the cleaning unit 120 and the impeller 150 into the filter 203. At this time, the operation of the driving unit 205 is controlled through the control unit.

The cleaning unit 120 is rotatably coupled to the lifting shaft 110 by interconnecting with the impeller 150 disposed at the lower end thereof by the connector 140.

The cleaning unit 120 is coupled to the filter 203 while rotating around the lifting shaft 110 when the impeller 150 rotates in a state of being drawn into the filter 203 by the descent of the lifting shaft 110, Clean the foreign matter attached to the inner surface.

The protection guide 130 has a larger diameter than the impeller 150 and is inserted into the lifting shaft 110 at a position between the cleaning unit 120 and the impeller 150.

The protection guide 130 directly contacts the filter 203 during the rotation of the impeller 150 to prevent the filter 203 or the impeller 150 from being damaged.

The connector 140 detachably connects the cleaning unit 120 and the impeller 150 at a lower position of the protection guide 130.

When the impeller 150 is rotated through the connection by the connector 140, the cleaning unit 120 rotates in conjunction with the impeller 150.

The impeller 150 is rotatably coupled to the lifting shaft 110 at a lower portion of the connector 140 and is rotated by the fluid force of the raw water flowing through the lower inlet 201 of the automatic power cleaning and filtering device 200 And transfers rotational force to the cleaning unit 120 through the connector 140. [

4 is a perspective view showing the detailed structure of the lifting shaft 110 according to the present invention.

Referring to FIG. 4, the lifting shaft 110 according to the present invention is connected vertically downward from a driving unit 205 located at the upper end of the non-powered automatic washing and filtering apparatus 200, .

4, the lower end fixed region 113, to which the cleaning unit 120 and the impeller 150 are coupled, has a shape in which the diameter of the lower end fixed region 113 is smaller than that of the upper region .

The lifting shaft 110 is provided with a locking protrusion 112 formed at a portion of the lifting shaft 110 whose diameter is changed to have a diameter larger than a diameter of the body forming the maximum diameter of the lifting shaft 110, So that the cleaning unit 120 is prevented from being moved upward by being caught by the engaging jaws 112.

In addition, an annular fixing groove 114 is formed at the lower end of the lifting shaft 110 so that a fixing ring 160 of '?'

Therefore, by fastening the fixing ring 160 to the fixing groove 114 in a state where the cleaning unit 120 and the impeller 150 are sequentially fitted to the lower end portion 113 of the elevation shaft 110, the impeller 150 Is restricted by the retaining ring 160 to move downward.

FIG. 5 is an exploded perspective view of the cleaning unit 120 according to the present invention, and FIG. 6 is an assembled cross-sectional view of FIG.

5 and 6, the cleaning unit 120 according to the present invention includes a cleaning brush 124 as a cleaning means for cleaning the filter 203, a support shaft 124 on which the cleaning brush 124 is supported, 123, and a rotation frame 121 on which the support shaft 123 is supported.

The cleaning brush 124 is a cleaning means that directly contacts the inner surface of the filter 203 and removes impurities accumulated on the inner surface of the filter 203 to be cleaned.

The cleaning brush 124 is formed by winding a long strip-shaped wire having a shape embedded in a plurality of brushes several times in a cylindrical shape. The cleaning brush 124 is wound around the support shaft 123 with a through- Respectively.

The support shaft 123 is fitted to both arms 122 of the rotary frame 121 and the cleaning brush 124 is rotatably engaged on the support shaft 123 thus fitted.

The rotating frame 121 includes a body having a circular tube shape through which the lifting shaft 110 passes, and an arm 122 extending in the horizontal direction from the body and being formed symmetrically with respect to the body .

At this time, the lifting shaft 110 passing through the inside of the body of the rotating frame 121 and the supporting shaft 123 passing through the inside of the arm 122 are arranged to be parallel to each other.

The cleaning brush 124 is fitted on the support shaft 123 passing through the arm 122. The fixing ring 125 is mounted on the upper and lower support shafts 123 on which the cleaning brush 124 is inserted, So that the cleaning brush 124 fitted on the support shaft 123 is prevented from being separated by the fixing ring 125.

In this case, annular fixing grooves 123a, 123b, 123c, and 123d are formed at two positions in the middle portion of the support shaft 123 and at upper and lower portions thereof for fastening the fixing ring 125 for fixing the cleaning brush 124 Is formed.

A plurality of coupling grooves 126 are formed at the lower end of the body of the rotary frame 121 so that a plurality of coupling projections 142 formed at the upper end of the connector 140 can be inserted and coupled.

In this case, the coupling grooves 126 are equally spaced along the circumferential direction of the body of the rotary frame 121, and the coupling grooves 126 are formed in the same shape on the upper end of the body of the rotary frame 121 Respectively. At this time, the engaging groove 127 formed at the upper end of the body of the rotating frame 121 will be described later.

7 illustrates an example of the structure of the cleaning rod 128 as a cleaning means that can be applied in place of the cleaning brush 124 in the cleaning unit 120 of the present invention described above.

The cleaning rod 128, which can be applied as an alternative to the cleaning brush 124, may have a structure in which a plurality of cleaning protrusions 128a are formed on the outer circumferential surface of the cylindrical body as shown in FIG. 7, 123 may be formed in the through-hole.

The cleaning rod 128 having such a structure can be manufactured in the form of a plastic injection mold or a metal casting.

Of course, the cleaning means applied to the cleaning unit 120 of the present invention may be applied in various forms other than the cleaning brush 124 and the cleaning rod 128 described above.

8 is a detailed view of the structure of the impeller 150 according to the present invention. The impeller 150 has a circular tube 110, which is inserted into the inner space of the connector 140, A protruding tube portion 151 having a shape protruding upward is formed.

A plurality of fixing holes 152 are formed on the bottom surface of the impeller 150 around the protruding tube portion 151 so that a plurality of fixing protrusions 144 protruding downward from the lower end of the connector 140 can be inserted and fixed. .

At this time, the plurality of fixing holes 152 are arranged at equal intervals around the protruding tube portion 151, and the fixing protrusions 144 at the lower end of the connector 140 are inserted into the plurality of fixing holes 152 Respectively.

When the impeller 150 is rotated by the flow of the raw water flowing into the filter automatic washing apparatus 200, the washing unit 120 connected to the impeller 150 through the connector 140 is rotated by the impeller 150 The cleaning operation of the inner surface of the filter 203 can be performed.

FIG. 9 is a perspective view showing the detailed structure of the impeller protection guide 130 for protecting the impeller 150, and FIG. 10 is a sectional view showing the sectional structure of FIG.

9 and 10, the impeller protection guide 130 includes a cylindrical shaft portion 131 through which the lifting shaft 110 passes, a rim 132 disposed around the shaft portion 131, And a spoke 133 for radially connecting the shaft 131 and the rim 132. The spokes 133 are formed to have a wheel shape as a whole.

Here, the diameter D of the rim 132 of the protection guide 130 is formed to be larger than the diameter of the impeller 150 disposed on the lower side.

Therefore, the impeller 150 is prevented from directly interfering with the inner surface of the filter 203 by the protection guide 130 in the process of rotating and driving, and the impeller 150 is prevented from directly contacting the filter 203 And can be prevented from being damaged by contact.

The upper end of the connector 140 is inserted from the lower end of the shaft portion 131 and assembled with the protection guide 130. The shaft portion 131 of the protection guide 130 is formed in a circular tube shape and extends downward. do.

Such an assembled structure of the connector 140 and the protection guide 130 is separately shown in FIG.

11 and 12 show a structure of another embodiment of the impeller protection guide according to the present invention.

9 and 10 has a structure in which the thickness of the rim 132 is thin and the impeller 150 located at the lower portion of the protection guide 130 is located at the portion of the rim 132 And are not overlapped with each other,

The protection guide 130 of the type shown in FIGS. 11 and 12 is formed in a thick shape in which the thickness of the rim 132 completely surrounds the periphery of the lower side impeller 150.

If the thickness h of the rim 132 of the protection guide 130 is formed to have a large thickness width h enough to cover the impeller 150 disposed at the lower portion of the protective guide 130, The impeller 150 is completely shielded from the filter 203 through the rim 132 to prevent the impeller 150 from being damaged due to contact with the inner surface of the filter 203.

The rotation speed of the impeller 150 can be significantly increased due to the high speed flow introduced along the narrow space between the impeller 150 and the rim 132 when the impeller 150 is rotated. Therefore, the rotational force of the cleaning unit 120 is also raised, so that the cleaning efficiency of the filter 203 can be increased and the cleaning time can be shortened.

13 and 14 show the detailed structure of the connector according to the present invention.

13 and 14, the connector 140 according to the present invention is rotatably supported by the lower end portion 113 of the lifting shaft 110, and the body of the rotating frame 121 located at the upper portion and the lower portion And the impeller 150 disposed at the downstream side of the impeller 150 are interconnected.

The connector 140 has a circular tube shape and has a shape corresponding to the coupling groove 126 formed at the lower end of the body of the rotary frame 121 at the upper end thereof, (Not shown).

A seating part 143 on which the shaft 131 of the protection guide 130 located at the upper part is seated is formed at the lower end of the connector 140 as a part having a diameter larger than the diameter of the body.

15, when the shaft 131 of the protection guide 130 is fitted around the connector 140 and assembled with each other, the lower end of the shaft 131 of the protection guide 130 is inserted into the connector 140, And is seated and supported at the upper end of the seating portion 143 of the seat 140.

A plurality of fixing protrusions 144 are formed on the lower surface of the seating portion 143 so as to be press-fitted into the plurality of fixing holes 152 formed in the bottom portion of the lower portion of the impeller 150.

A plurality of coupling protrusions 142 formed at the upper end of the connector 140 formed in this structure are engaged with the plurality of coupling grooves 126 formed at the lower end of the body of the rotary frame 121, The fixing protrusion 144 of the rotating frame 121 is press-fitted into the plurality of fixing holes 152 formed in the bottom surface portion of the impeller 150 so that the gap between the body of the rotating frame 121 and the impeller 150 is fixed to the connector 140, As shown in FIG.

When the impeller 150 is rotationally driven by the flow of the raw water flowing through the connector 140 due to the connection structure between the rotating frame 121 and the impeller 150, The rotating frame 121 rotates in conjunction with the impeller 150 to effectively clean the foreign matter accumulated on the inner surface of the filter 203 through the cleaning brush 124. [

16 and 17 show the detailed structure of the bushing as an example of the friction reducing means according to the present invention. As shown in FIGS. 16 and 17, the bushings 116 and 154 are used for raising and lowering the cleaning means assembly So that the cleaning unit 120 and the impeller 150 are smoothly rotated.

The bushings 116 and 154 have a circular tubular shape as shown in Figs. 16 and 17, and one end thereof is bent outward to have an expanded diameter.

One of the bushings 116 and 154 having such a shape is engaged with the lower end portion 113 of the lifting shaft 110 before the cleaning unit 120 is assembled to the lifting shaft 110, The upper end of the lifting shaft 110 is engaged with the lower end 113 of the lifting shaft 110 after the impeller 150 is assembled to the shaft 110, (160).

One of the two bushings 116 and 154 is installed at a portion where the lifting shaft 110 and the body of the rotating frame 121 are in contact with each other and the other is connected to the lifting shaft 110 and the fixed ring 160 and the impeller 150 The upper end of the body of the rotating frame 121 is moved up and down through the uppermost bushing 116 in the process of rotating the impeller 150 and the rotating frame 121, It is possible to prevent the impeller 150 from directly interfering with the fixing ring 160 through the lowermost bushing 154 and thereby preventing the impeller 150 150 and the cleaning unit 120 can be induced smoothly.

Various types of friction reducing means such as a bearing may be used as the friction reducing means for reducing the friction between the rotary frame 121 and the impeller 150, have.

Meanwhile, FIG. 18 shows a plurality of cleaning units 120 according to the present invention connected in the axial direction.

As shown in Fig. 18, the cleaning means assembly according to the present invention is configured to be able to connect a plurality of cleaning units 120A and 120B in an axial direction, if necessary.

In this case, in the lower cleaning unit 120A in which the connector 140 is directly connected, the upper surface of the body of the rotary frame 121 has a shape corresponding to a plurality of coupling grooves 126 formed on the lower end surface thereof Another plurality of engaging grooves 127 having a predetermined width are formed.

The upper cleaning unit 120B is connected to the upper side of the lower cleaning unit 120A and the lower end of the body of the rotation frame 121 is connected to the body of the rotation frame 121 of the lower cleaning unit 120A. A plurality of engaging projections 129 are formed which are detachably engaged with the plurality of engaging grooves 127 formed at the upper end.

The upper cleaning unit 120B is also provided with a plurality of coupling portions 127 having the same shape as the coupling groove 127 formed at the upper end of the body of the rotary frame 121 of the lower cleaning unit 120A, Grooves 127 are formed.

The body length of the rotary frame 121 of the upper cleaning unit 120B is set such that the interference between the cleaning brushes 124 provided on both sides of the upper cleaning unit 120B and the lower cleaning unit 120A is prevented Is longer than the body length of the rotary frame 121 of the lower cleaning unit 120A.

The shape of the lower end of the body of the rotary frame 121 of the upper cleaning unit 120B connected to the upper end of the body of the rotary frame 121 of the lower cleaning unit 120A is changed to the upper end of the body of the rotary frame 121 of the lower cleaning unit 120A As a result, a plurality of cleaning units 120A and 120B can be connected to each other if necessary.

Since the plurality of cleaning units 120A and 120B can be used by connecting them in the axial direction in accordance with the length of the filter 203, the upper and lower surfaces of the filter 203 can be cleaned The lifting shaft 110 is repeatedly moved up and down so that the longitudinal overall area of the filter 203 is washed at once through the plurality of cleaning units 120A and 120B interconnected at a designated one cleaning position without having to clean It is possible to obtain an advantage that can be achieved.

The length of the support shaft 123 is extended to match the length of the filter 203 in one cleaning unit 120 having the above-described embodiment shape and the cleaning brush 124 is mounted on the support shaft 123 up and down It is also possible to arrange a plurality of them in a direction.

Hereinafter, a method for assembling the cleaning means assembly for the non-powered, automatic cleaning and filtering apparatus of the present invention will be described.

FIG. 19 is a flowchart for explaining the entire assembling procedure of the cleaning means assembly according to the present invention, and FIG. 20 is a flowchart specifically illustrating the assembling procedure of the cleaning unit 120 according to the present invention.

In assembling the cleaning means assembly according to the present invention, first, the cleaning unit 120 is assembled.

20, the cleaning unit 120 is assembled by inserting (S221) the supporting shafts 123 through the two arms 122 formed on both sides of the rotating frame 121, A fixing ring 125 is fastened to each of the two fixing grooves 123a and 123b formed in a middle portion of a supporting shaft 123 passing through the arm 122 so that the supporting shaft 123 is connected to the arm 122 A cleaning brush 124 is fitted to the upper and lower portions of the support shaft 123 in a state where the support shaft 123 is fixed to the support shaft 123 in step S222, The cleaning brush 124 is fixed to the upper portion of the cleaning ring 125 through the fixing ring 125 so that the assembly of the cleaning unit 120 is completed.

19, when the assembly of the cleaning unit 120 is completed in this way, the bushing 116 is inserted into the lower end of the lifting shaft 110 (S210), and the assembled cleaning unit 120 The connector 140 is sandwiched and assembled (S240), the impeller 150 is sandwiched and assembled (S250), and the assembly is assembled (S220) The assembling operation of the cleaning means assembly is completed by assembling the impeller 150 by inserting it (S260) and assembling it by fastening the fixing ring 160 to the lowermost end of the elevation shaft 110 (S270).

In this case, the protection guide 130 and the connector 140 may be pre-assembled first and then inserted into the lifting shaft 110 in the same manner as the cleaning unit 120 in the assembling process.

The bushing 116, the cleaning unit 120, the protection guide 130, the connector 140, the impeller 150, and the bushing 154 (not shown) are installed on the lower end portion 113 of the stopper 112 of the lifting shaft 110, And then the fixing ring 160 is fastened to the fixing groove 114 formed in the lower end portion 113 of the elevation shaft 110 to perform the cleaning means assembly quickly and easily .

21 shows a filter automatic cleaning apparatus 200 equipped with the cleaning means assembly of the present invention as described above, showing the state before the cleaning means assembly is operated, and Fig. 22 shows a state in which the cleaning means assembly is operated, (203) is cleaned. 23 is a flowchart sequentially illustrating the automatic filter cleaning method using the cleaning means assembly according to the present invention.

Next, an automatic filter cleaning method using the cleaning means assembly of the present invention will be described with reference to FIGS. 21 to 23. FIG.

21, the foreign matter discharge valve 204 located at the upper portion of the automatic filter cleaning device 200 is kept closed when the cleaning means assister of the present invention is not operated, The breech is maintained in a stopped state in the upper side space of the filter 203.

In this case, the raw water flowing through the inlet 201 at the lower end of the filter automatic washing apparatus 200 is normally filtered through the filter 203 inside, and the filtered water filtered through the filter 203 passes through the outlet 202 to the outside.

Thereafter, when foreign matter accumulates on the inner surface of the filter 203 and the pressure difference between the front and rear ends of the filter 203 is increased to a pressure equal to or higher than the set value, or when the automatic cleaning time of the preset time period is reached, As shown in the figure, the automatic filter cleaning operation by the cleaning means assembly of the present invention is performed.

That is, in step S310, the control unit determines whether the differential pressure before and after the filter 203 sensed in real time rises above the set value or reaches the preset filter automatic cleaning time (S310)

When it is determined that the automatic cleaning time of the filter has been reached, a control signal is outputted to open the foreign matter discharge valve 204 and drive the driving part 205 located on the upper side of the automatic filter cleaning device 200, So that the cleaning unit 120 including the impeller 150 flows into the space inside the filter 203 (S320)

The descent of the lifting shaft 110 causes the washing unit 120 including the impeller 150 to descend by the flow force of the raw water flowing through the inlet 201 at the lower end of the filter automatic washing apparatus 200 The impeller 150 is rotated and the washing unit 120 connected to the impeller 150 through the connector 140 rotates in conjunction with the impeller 150 and is circulated through the washing unit 120 to the inside of the filter 203 The scooping unit 120 removes foreign matter, scale, fouling, and the like accumulated on the lifting shaft 110 and drives the driving unit 205 in the opposite direction again through the control unit to raise and lower the lifting shaft 110 to a predetermined upper position, The washing of the filter 203 is performed once again. At this time, the series of cleaning processes may be repeated several times (S330)

When the filter cleaning process by the cleaning unit 120 is performed for a predetermined time, foreign matter removed from the filter 203 through the cleaning process is discharged to the foreign object discharge valve (204).

Thereafter, the control unit returns the washing unit 120 to its original state (S340), and then determines whether or not the pressure difference between the upstream and downstream of the filter 203 has fallen to an appropriate differential pressure equal to or less than the set value, (S350)

If it is determined that the filter has been cleaned, the filter cleaning operation is completed by closing the foreign matter discharge valve 204 (S360)

Of course, when the pressure difference between the upstream and downstream ends of the filter 203 does not drop to an appropriate differential pressure equal to or less than the set value, the above-described cleaning process can be repeatedly performed.

According to the automatic filter cleaning method using the cleaning means assembly of the present invention as described above, the impeller 150 is rotated using the flow force of the raw water flowing through the inlet 201 of the automatic filter cleaning apparatus 200, The cleaning unit 120 is rotated by receiving the rotational force of the impeller 150 to effectively remove impurities, scale, fouling, and the like accumulated inside the filter 203 by a mechanical method.

The body of the rotating frame 121 and the impeller 150 are connected in a detachable structure through the connector 140 so that the rotational force of the impeller 150 is transmitted to the rotating frame 121 through the connector 140, The filter 203 can be effectively cleaned through the brush or the cleaning rod and the connector 140 can be removed from the body of the rotary frame 121 during the replacement operation of the impeller 150, It can be easily performed.

Since the impeller protection guide 130 having a diameter larger than the diameter of the impeller 150 is provided around the connector 140, the impeller 150 is damaged by contact with the inner surface of the filter 203 during the filter cleaning operation .

In addition, since a plurality of cleaning units 120 can be connected in the axial direction, it is possible to extend the entire length of the cleaning unit 120 to match the length of the filter 203, The foreign substance of the filter 203 can be removed at a predetermined position at a time.

The cleaning unit 120, the connector 140, the protection guide 130, and the impeller 150 are sequentially inserted into the lower end portion 113 of the lifting shaft 110 during the assembling operation of the cleaning means assembly Assembling is completed only by a simple operation of fixing through the fixing ring 160 and assembling.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

110: lifting shaft 112:
114, 123a to 123d: fixing grooves 116, 154: bushing
120: cleaning unit 121: rotating frame
122: arm 123: support shaft
124: Cleaning brush 125, 160: Retaining ring
126, 127: coupling groove 128:
128a: Cleaning protrusion 130: Protection guide
131: shaft portion 132: rim
133: spoke 140: connector
142, 129: coupling projections 143:
144: Fixing projection 150: Impeller
151: projecting tube 152: stationary hole
200: Powerless automatic cleaning filter device
201: inlet 202: outlet
203: Filter 204: Foreign matter discharge valve
205:

Claims (24)

delete An elevating shaft driven up and down;
And a cleaning unit rotatably coupled to the lifting shaft and rotated together with the impeller to clean foreign matter accumulated on the inner surface of the filter,
The cleaning unit includes:
A cleaning means for cleaning the foreign matter accumulated on the inner surface of the filter;
A support shaft on which the cleaning means is supported;
And a rotating frame formed integrally with the arm, the rotating frame including a body connected to the impeller, the rotating frame being integrally formed with the arm, the arm being rotatably supported by the supporting shaft, assembly.
The cleaning device according to claim 2, wherein a fixing ring is provided on the support shaft so as to restrict the upward and downward movement of the cleaning means.
The cleaning device according to claim 2, further comprising a connector rotatably coupled to the lifting shaft and interconnecting the body of the rotating frame and the impeller,
The cleaning device according to claim 4, further comprising a protection guide having a larger diameter than the impeller and coupled to an outer circumferential portion of the connector,
[5] The automatic immersion cleaner according to claim 4, wherein a protruding tube portion is formed at an inner center of the impeller so as to be inserted into the connector,
The connector according to claim 6, wherein a plurality of fixing protrusions protruding downward are formed at a lower end of the connector, and a fixing hole for pressing the fixing protrusion is formed on a bottom surface of the impeller positioned around the protruding tube portion Non-motorized filter automatic cleaning device cleaning means assembly
The automatic non-powered filter cleaning apparatus according to claim 4, wherein a plurality of coupling protrusions are formed at an upper end of the connector, and a plurality of coupling grooves are formed at a lower end of the rotating frame to detachably engage with the coupling protrusions Cleaning means assembly
The cleaning device according to claim 4, wherein the cleaning unit is detachably connected to a plurality of the cleaning units along an axial direction thereof.
The washing machine according to claim 9, wherein a plurality of coupling grooves are formed on an upper end of the rotary frame body of the lowermost stage cleaning unit connected to the connector, and a lower end of the rotary frame body of another washing unit, And a plurality of coupling protrusions for detachably engaging with the grooves are formed in the main body of the non-powered filter automatic washing apparatus.
The cleaning device according to claim 2, wherein the cleaning means is a cleaning brush formed by winding a plurality of brush-embedded wires in a cylindrical shape several times.
The cleaning device according to claim 2, wherein the cleaning means is a cleaning rod having a plurality of cleaning projections formed on a cylindrical outer circumferential surface thereof.
3. The cleaning device according to claim 2, wherein a friction reducing means is provided between a contact surface of the body of the rotary frame and the elevating shaft or a contact surface of the elevating shaft and the impeller.
[3] The washing machine according to claim 2, wherein a fixing ring for fixing the position of the impeller is provided on an elevation shaft located at a lower end of the impeller,
(a) cleaning means for cleaning foreign matters accumulated on the inner surface of the filter, a support shaft for supporting the cleaning means, an arm for supporting the support shaft rotatably, and an arm integrally formed with the arm and connected to the impeller A method of manufacturing a washing machine, comprising the steps of:
(b) inserting the impeller into the lifting shaft and engaging with the cleaning unit;
Wherein the cleaning device is mounted on the cleaning device.
The cleaning device as claimed in claim 15, further comprising a friction reducing means fitted on the lifting shaft before the cleaning unit of the step (a) is engaged. Way.
16. The method of claim 15, wherein the assembly of the cleaning unit of step (a)
Inserting a supporting shaft into both arms of the rotating frame and then fixing the fixing ring with the supporting shaft;
Fitting the cleaning means to the support shaft and fixing the support shaft through the fixing ring;
Wherein the cleaning device assembly includes a plurality of cleaning devices.
The cleaning device according to claim 15, further comprising a step of inserting a connector assembled with a protective guide between the step (a) and the step (b) by inserting the connector into the lifting shaft, .
The cleaning device according to claim 15, further comprising a friction reducing means coupled to the lifting shaft after the impeller of the step (b) is coupled to the lifting shaft, .
The method of claim 15, further comprising: after the step (b), fixing the position of the impeller by coupling the retaining ring to the lifting shaft.
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