JP6519889B1 - Filtration unit and pool water purification apparatus equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filtration unit which can easily carry in and out a cylindrical filter. SOLUTION: A raw water supply port 9 is provided in a body portion of a housing 8 provided with a filter insertion opening 8a at the upper part, and filtered water extraction ports 10a, 10b provided with compressed air feed sockets for backwashing at upper and lower parts. A bottom plate 15 provided with a filtered water outlet 14 provided with a shaft 12 provided with an externally threaded portion 12 and provided with a lower engaging portion 14a of the cylindrical filter 13 around the shaft 12 is fixed to the housing 8. The upper holding board 18 provided with the filtered water drainage port 16 provided with the upper engaging part 16a engaged with the upper part of the cylindrical filter 13, and the upper holding board receiving part 19 supporting the upper holding board 18 The cylindrical filter 13 is fixed by screwing the knob star nut 20 to the male screw 12a of the shaft 12 and fixed on the inner surface of the housing 8. A filter guide plate 26 is provided on the inner surface of the housing 8. Fix it. [Selected figure] Figure 3

Description

  The present invention relates to water for drinking, juice, liquor, liquid seasoning, etc. including pure water, industrial liquid including industrial water, drainage, drainage, rain water, lake water, river water, etc. The present invention relates to a filtration unit suitable for the filtration of

  At present, in many pool water purification devices, as shown in FIG. 1, filtration units 1 of the number corresponding to the required filtration capacity are provided in parallel, and the upper filtered water outlet of each filtration unit 1 is a Victorian joint 2 Are connected to the filtered water drainage pipe 3 respectively, but it takes time and effort to attach and remove the Victorian joint 2 when taking out and attaching the filter from the filtration unit 1, and it takes a lot of time for maintenance work I needed it.

JP, 2001-38115, A

  In the conventional device shown in FIG. 1, not only the installation and removal of the Victorian joint 2 takes time as described above, but a plurality of cylindrical filters are sandwiched by the upper and lower element plates and fastened by the shaft rod and the lock nut Since the plurality of cylindrical filters are simultaneously taken out of the housing, it takes time and effort for attaching and detaching the respective cylindrical filters.

  Then, this invention makes it a subject to provide the filtration unit which can carry out taking in / out of a cylindrical filter easily.

The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 provides a filter insertion opening at the top and a raw water supply port at the body and filtered water at the top and bottom a housing provided with a takeout opening and closing lid is fixed by the filter insertion openings twistlock of the housing, a cylindrical filter appropriate number to be furnished to the housing, is fixed to the inner bottom portion of the housing, A bottom plate on which an axial rod provided with a male screw portion at its upper end is erected at the upper center, and an adequate number of filtered water discharge ports provided with a lower engaging portion of the cylindrical filter around it, and the cylindrical An upper holding plate of the cylindrical filter provided with an appropriate number of filtered water discharge ports provided with an upper engaging portion of the filter and a handle, and an external screw of the shaft rod inserted into a central hole provided in the upper holding plate Lock nut and An upper holding plate receiving portion provided on the serial housing inner surface, a filtration unit, characterized by comprising a filter guide disposed at appropriate intervals in the inner surface of the housing.

  The invention according to claim 2 is the filtration unit according to the invention according to claim 1, wherein the tightening device comprises an eyebolt pivotally attached to the outer surface of the housing and a spindle handle.

  The invention according to claim 3 is the filtration unit according to the invention according to claim 1, wherein a knob star nut is used as a lock nut which is screwed to the male screw portion of the shaft rod.

  According to a fourth aspect of the present invention, in the first aspect, the filter guide is a metal plate provided with a through hole for the shaft, a through hole for the cylindrical filter, and a notch or a through hole for raw water circulation around It is a filtration unit characterized by a certain thing.

  The invention according to claim 5 is the filtration unit according to the invention according to claim 1, characterized in that the filtered water outlet is provided with a backwashing compressed air feeding socket.

  Invention of Claim 6 is a pool water purification apparatus provided with the filtration unit as described in any one of Claims 1-5.

  According to the present invention as set forth in claim 1, each cylindrical filter can be manually removed by releasing the tightening device, removing the open / close lid, then removing the lock nut and holding the handle to open the upper holding plate. In addition, when inserting the cylindrical filter, even if it is a flexible long cylindrical filter which can be guided by the filter guide, it can be rapidly inserted, and the long cylindrical filter can be taken out. There is an effect that the installation can be performed easily and in a short time.

  Further, according to the present invention, the opening and closing of the open / close lid can be manually performed without using a tool.

  Further, according to the third aspect of the present invention, the upper holding board can be attached and detached manually without using a tool.

  According to the fourth aspect of the present invention, the rigidity of the housing can be increased, and the housing can be made of a thin material, which contributes to weight reduction.

  According to the fifth aspect of the present invention, it is possible to backwash the cylindrical filter with compressed air.

It is the perspective view which showed the connection state of the filtration unit in the conventional pool water purification apparatus. 1 is a plan view of an embodiment of the present invention. It is the AA line longitudinal cross-sectional view of FIG. It is a top view of the opening and closing lid in the example of the present invention. It is a top view of the filter guide in the example of the present invention. It is a front view of the pool water purification apparatus using the filtration unit of the Example of this invention. It is a top view of the pool water purification apparatus shown in FIG.

  Hereinafter, an embodiment of a filtration unit according to the present invention will be described based on the drawings. FIG. 2 is a plan view of the filtration unit 4 according to the embodiment of the present invention. 5 is an open / close lid provided with handles 6, 6, 7 is a speed handle for tightening the open / close lid 5 to the housing 8, 9 is the above A raw water supply port provided in the body of the housing 8 and a filtered water outlet 10a provided with a backwashing compressed air feed socket 11a.

3 is a vertical sectional view taken along the line A-A of FIG. 2. A filtered water outlet 10b having a filter insertion opening 8a and a backwashing compressed air inlet socket 11a is provided in the upper part of the housing 8, A filtered water outlet 10a is provided with a backwashing compressed air inlet socket 11b. Further, at the inner bottom of the housing 8, four shaft rods 12 having male threads 12a at their upper ends are erected at the upper center and four lower engaging portions 14a of the cylindrical filter 13 are provided around them. A bottom plate 15 provided with a filtered water outlet 14 is fixed. Further, four filtered water discharge ports 16 and a handle 17 are provided with the upper engaging portion 16a of the cylindrical filter 13 at the upper portion of the cylindrical filters 13 and 13 whose lower ends are engaged with the lower engaging portion 14a. The upper holding board 18 of the cylindrical filter 13 provided with The upper holding board 18 is supported by an upper holding board receiving portion 19 provided on the inner surface of the housing 8, and four cylindrical members are formed by screwing the knob star nut 20 onto the male screw 12 a of the shaft 12. The filter 13 is fixed in the housing 8. An O-ring 21 is provided between the upper holding board 18 and the upper holding board receiving portion 19, and the O-ring 21 seals between the two.

  Further, the open / close lid 5 is fitted into the filter insertion opening 8 a, and the open / close lid 5 is inserted into the filter of the housing 8 by six sets of tightening devices 23 consisting of an eyebolt 22 pivotally attached to the outer surface of the housing 8. It is fastened to the opening 8a. The filter insertion opening 8 a and the open / close lid 5 are sealed by O-rings 24 and 25. As shown in FIG. 4, six notches 5a for engaging the eyebolts 22 are provided on the flange 8b provided on the open / close lid 5 and the filter insertion opening 8a.

  Further, in the housing 8, a metal filter guide plate 26 having a shape as shown in FIG. 5 is welded in appropriate numbers at appropriate intervals. In the figure, 27 is a shaft rod insertion hole, 28 is a guide hole of the cylindrical filter 13, and 29 is a raw water distribution notch, which are formed by laser cutting. In this embodiment, a notch is provided to circulate raw water, but it may be a through hole. Further, the number of cylindrical filters 13 is not limited to four.

  Since the filtration unit of the embodiment according to the present invention is configured as described above, when taking out the cylindrical filter 13, first, the tightening device 23 consisting of the eyebolt 22 and the speed handle 7 is manually released to open and close the lid The cylindrical filter 13 can be easily and easily taken out by holding the handle 6 and then removing the knob star nut 20 manually, and then holding the handle 17 and removing the upper holding plate 18. That is, the cylindrical filter 13 can be easily taken out manually only without using a tool. When the cylindrical filter 13 is mounted, after inserting the cylindrical filter 13 into the guide hole 28 of the first filter guide plate 26, even if it is a soft cylindrical filter, the lower filter guide plate 26 is sequentially inserted. It can be inserted into the guide hole 28 and smoothly inserted to the bottom plate 15. Next, the upper holding plate 18 is mounted, and each cylindrical filter 13 can be fixed in the housing 8 by screwing and tightening the knob star nut 20 to the male screw portion 12 a of the shaft 12. The housing 8 can be sealed by fitting it to the filter insertion opening 8a of the housing 8 and fastening it with a tightening device 23 consisting of an eyebolt 22 and a speed handle 7. Since any of the series of operations can be performed only manually without using a tool, the cylindrical filter 13 can be quickly replaced, and maintenance time can be shortened. Further, the filter guide plate 26 not only facilitates the insertion of the long cylindrical filter 13 but also has the effect of increasing the rigidity of the housing 8 and hence the thickness of the housing 8 can be reduced, so that the weight reduction is achieved. And production cost reduction effects. Furthermore, even with the long cylindrical filter 13, the holding state is the same as the short cylindrical filter, so the deflection of the cylindrical filter is reduced during raw water inflow or backwashing with high pressure air, so The filtration and backwashing effects can be improved more than the filtration unit.

  As mentioned above, although the embodiment of the filtration unit concerning the present invention was explained, the pool water purification device which purifies the pool water which uses this filtration unit next as an example of its use is explained. However, its application is not limited to the pure water purifier.

  6 and 7 show piping connection examples of a pool water purification apparatus using the filtration unit according to the present invention, FIG. 6 is a front view, and FIG. 7 is a plan view thereof.

  In this example of use, three filtration units 4, 4, 4 according to the present invention are used, and the filtrate water outlets 10a, 10b provided above and below each filtration unit 4, 4, 4 are drained through valves V1, V2. The raw water supply port 9 of each filtration unit 4, 4, 4 is connected to the filtered water drainage pipe 30 provided with the valve V3 on the side, and the pump 33 of the pump 33 driven by the motor 32 through the connecting pipe 31 and the valve V4. The discharge side is connected by piping, and the pool water inflow side of the pump 33 is connected by piping through the hair catcher 34 to the pool water suction pipe 35. Further, a drain pipe 36 is connected to the connection pipe 31 via a valve V5.

  Each of the valves V1 to V5 uses an air drive valve, an electromagnetic valve, a motorized valve or the like, and although not shown in FIGS. 6 and 7, these valves V1 to V5 and the motor 32 are controlled by a controller The thing is the same as the pool water purifier for current use.

  In the filtration step, the valves V1 to V4 are opened, the valve V5 is closed, and the motor 32 is started to drive the pump 33. Raw water (pool water) is sucked through the pool water suction pipe 35 by driving the pump 33, and the hair catcher 34 contains coarse impurities such as hair, lint, plaster and dust contained in the raw water or floating. Is removed and then purified by the filtration units 4, 4, 4 and discharged from the filtered water discharge pipe and reduced to the pool.

  When clogging occurs in the cylindrical filter 13 during the filtration process, the pressure loss increases, causing a difference between the internal and external pressure of the housing 8, and when a pressure sensor (not shown) detects that the pressure difference exceeds a prescribed value. The controller closes V1 to V4 and opens the valve V5, and further feeds the compressed air from the compressor (not shown) into the housing 8 through the backwashing compressed air feed sockets 11a and 11b. The compressed air that has been fed in blows outward from the central portion of the cylindrical filter 13 and cleans the dirt adhering to the cylindrical filter 13. The dirt adhering to the cylindrical filter 13 is drained from the drainage pipe 36 together with the raw water in the housing 8 through the raw water supply port 9, the connecting pipe 31 and the valve 5. When this backwashing process is completed, the air is removed, and then the filtration process is again performed to purify the pool water.

  As mentioned above, although the case where the filtration unit concerning the present invention was used for a pool water purification device was explained, by selecting and using the cylindrical filter of the quality of the material according to a use, it begins with liquid other than pool water or industrial water. It is suitable as a filtration unit for purification devices for industrial liquids, drainage, drainage, rainwater, lake water, river water, seawater and the like.

Reference Signs List 1, 4 filtration unit 5 opening / closing lid 6 handle 7 speed handle 8 housing 8a filter insertion opening 8b flange 9 raw water supply port 10a, 10b filtered water outlet 11a, 11b compressed air supply socket 12 for backwashing 12 shaft rod 12a male thread 13 Cylindrical filter 14, 16 Filtered water drainage port 14a Lower engaging portion 15 Bottom plate 16a Upper engaging portion 17 Handle 18 Upper holding plate 19 Upper holding plate receiving portion 20 Knob star nut 21, 24, 25 O ring
22 Eyebolt 23 Tightening device 26 Filter guide plate 27 Shaft rod insertion hole 28 Guide hole 29 Notch for raw water circulation 30 Filtered water drainage pipe 31 Connecting pipe 32 Motor 33 Pump 34 Hair catcher 35 Pool water suction pipe 36 Drainage pipe

Claims (6)

A housing having a filter insertion opening at the top and a raw water supply port at the body and a filtered water outlet at the top and bottom, and an open / close lid fixed to the filter insertion opening of the housing by a clamping device And a shaft filter having an appropriate number of cylindrical filters internally mounted in the housing, and an outer bottom end fixed to the inner bottom of the housing and provided with an externally threaded portion at the upper end, the cylindrical shape around the top The cylindrical filter provided with a bottom plate provided with an appropriate number of filtered water discharge ports provided with a lower engagement portion of the filter, and an appropriate number of filtered water discharge ports provided with an upper engaged portion of the cylindrical filter and a handle An upper holding board, a lock nut screwed to an external screw of the shaft rod inserted into a central hole provided in the upper holding board, an upper holding board receiving portion provided on the inner surface of the housing, and an appropriate space between the inner surface of the housing To Filtration unit, characterized by comprising a girder filter guide. The filtration unit according to claim 1, wherein the clamping device comprises an eyebolt pivotally attached to the outer surface of the housing and a spindle handle. 2. A filtration unit according to claim 1, wherein a knob star nut is used as a nut screwed to the male screw portion of the shaft. The filtration unit according to claim 1, wherein the filter guide is a metal plate provided with a through hole for the shaft, a through hole for the cylindrical filter, and a notch or a through hole for raw water circulation around the through hole. The filtration unit according to claim 1, wherein the filtered water outlet is provided with a backwashing compressed air feed socket. The pool water purification apparatus provided with the filtration unit as described in any one of Claims 1-5.

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