WO2019012633A1 - Liquid collection device in liquid tank and upflow filtration device provided with same - Google Patents

Liquid collection device in liquid tank and upflow filtration device provided with same Download PDF

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Publication number
WO2019012633A1
WO2019012633A1 PCT/JP2017/025438 JP2017025438W WO2019012633A1 WO 2019012633 A1 WO2019012633 A1 WO 2019012633A1 JP 2017025438 W JP2017025438 W JP 2017025438W WO 2019012633 A1 WO2019012633 A1 WO 2019012633A1
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WIPO (PCT)
Prior art keywords
liquid
tank
water
collecting
collection
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Application number
PCT/JP2017/025438
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French (fr)
Japanese (ja)
Inventor
岡田　明彦
Original Assignee
岡田産業株式会社
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Application filed by 岡田産業株式会社 filed Critical 岡田産業株式会社
Priority to PCT/JP2017/025438 priority Critical patent/WO2019012633A1/en
Priority to JP2018560243A priority patent/JP6475902B1/en
Publication of WO2019012633A1 publication Critical patent/WO2019012633A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
    • B01D24/16—Upward filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
    • B01D24/20—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being provided in an open container
    • B01D24/26—Upward filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/38—Feed or discharge devices
    • 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
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices

Definitions

  • the present invention relates to a liquid collecting device in a liquid tank and an upward filtration device provided with the same.
  • the filtered fresh water is connected to the water collection apparatus disposed above the filter medium.
  • the water is discharged to the outside through a water collection pipe (see, for example, Patent Documents 1 to 3).
  • the water collecting basin is fixed in the filtration tank so that the upper edge thereof is lower than the water surface of the fresh water in the filtering tank, and the fresh water overflowing into the water collecting basin is collected
  • a weir-shaped one (for example, see Patent Documents 1 and 2) which is discharged to the outside through a water collection pipe connected to a water tank and a horizontal water collection pipe are disposed below the surface of fresh water in the filtration tank.
  • fresh water flowing into the water collection pipe through a plurality of water collection holes provided on the outer periphery of the water collection pipe and discharged to the outside through the water collection pipe (see, for example, Patent Document 3).
  • Patent No. 3475201 gazette Patent No. 3543965 gazette Patent No. 3679561 gazette
  • Such a problem is not limited to the upward filtration device, and is, for example, a problem common to the liquid collecting device for collecting the liquid in the liquid tank storing the waste water, factory waste liquid, drinking water, and other liquids. is there.
  • the present invention has been made in view of the problems as described above which the prior art has, and it is possible to swirl the liquid collecting crucible without using an external power such as electric power, and thereby the liquid in the liquid tank It is an object of the present invention to provide a liquid collection device in a liquid tank that can collect liquid efficiently without staying locally in the liquid tank, and an upward filtration apparatus provided with the same.
  • the above problems are solved as follows.
  • the liquid in the liquid tank is floated so as to be rotatable about a vertical axis, and of side plates opposed to each other across a center line orthogonal to the vertical axis.
  • a liquid collection port is provided at a portion apart from the vertical axis in either one side, or a liquid collection port having a different opening area is provided in the both side plates, and a difference in hydraulic pressure acting on the outer surface of the both side plates
  • a liquid collecting crucible adapted to be pivoted about the vertical axis, and one end thereof is connected to the liquid collecting crucible, and the other end is disposed outside the liquid tank, and the liquid accumulated in the liquid collecting crucible is It shall be equipped with a drainage pipe drained out of a liquid tank.
  • the liquid in the liquid tank flows from the liquid collection port of the liquid collection tank into the liquid collection tank, and is discharged from the liquid tank through the drainage pipe from there.
  • the pressure receiving area for receiving the fluid pressure on the outside of the side plates facing each other across the center line in the liquid collection basin is the side plate not provided with the liquid collection port, or the side plate provided with the liquid collection port having a small opening area Is equivalent to the difference in the opening area of the liquid collection port or the opening area of the liquid collection port from the side plate provided with the liquid collection port or the side plate provided with the liquid collection port having a large opening area
  • the fluid collecting basin is provided with a side plate provided with a fluid collecting port or a fluid collecting opening having a large opening area around the vertical axis by the pressure of the liquid in the fluid tank.
  • the liquid in the liquid tank can be prevented from staying locally in the liquid tank, which may cause the liquid to stagnate. It is possible to prevent the generation of clumps of certain fine particles.
  • the liquid collecting crucible is swirled by utilizing the pressure of the liquid in the liquid tank, it is not necessary to use an external power such as electric power as in the case of using a stirring device, thereby reducing equipment cost and maintenance cost. be able to.
  • the liquid collecting basin collects the liquid while swirling in the liquid tank, it is possible to collect the liquid uniformly and efficiently from a wide range of liquid level from the fixed type liquid collecting basin.
  • the downwardly facing liquid drainage cylinder provided on the bottom plate of the liquid collection basin is rotatably fitted in the upwardly facing opening of the liquid drainage tube provided in the liquid tank And the liquid collecting crucible can be pivoted about the opening of the drainage pipe.
  • the liquid collecting tub can be rotated about the vertical axis and stably supported using the drainage pipe, but the liquid stored in the liquid collecting tub can be used as a drainage cylinder and It can be discharged smoothly out of the liquid tank through the drainage pipe.
  • a device for collecting liquid in a liquid tank wherein one end is disposed so as to open upward in the liquid tank, and the other end is disposed outside the liquid tank. And a liquid drainage port floats on the liquid in the liquid tank, a liquid collection port is provided in a part of the outer peripheral wall, and a bottom plate is provided with a liquid discharge cylinder facing downward, the liquid discharge cylinder being one end of the liquid discharge pipe.
  • a horizontally long liquid collecting weir that is rotatably fitted to the opening and allows the liquid in the liquid tank that has flowed in from the liquid collecting port to flow out from the liquid discharge pipe to the liquid discharge pipe;
  • a spiral flow which is provided in the drainage cylinder and guides the liquid flowing in the drainage cylinder in a spiral shape, thereby causing the liquid collecting crucible to swirl around the opening at one end of the drainage pipe by its reaction.
  • the liquid in the liquid tank flows from the liquid collection port of the liquid collection tank into the liquid collection tank, and is discharged from the liquid tank through the drainage pipe from there.
  • the liquid flows down the drainage pipe, the liquid is guided to flow spirally by the spiral flow forming means, and by the reaction at that time, the drainage pipe and the whole collecting basin integrated therewith are one end of the drainage pipe It is pivoted around the opening of the. Since the flow in the liquid in the liquid tank is generated by the swirling of the collecting basin, the liquid in the liquid tank can be prevented from staying locally in the liquid tank, which may cause the liquid to stagnate. It is possible to prevent the generation of clumps of certain fine particles.
  • the liquid collecting crucible is swirled by utilizing the energy of the liquid flowing down the drainage pipe, there is no need to use an external power such as electric power as in the case of using a stirring apparatus, and the facility cost and maintenance Cost can be reduced. Furthermore, since the liquid collecting basin collects the liquid while swirling in the liquid tank, it is possible to collect the liquid uniformly and efficiently from a wide range of liquid level from the fixed type liquid collecting basin.
  • the liquid collection basin is supported so as to be movable up and down together with the liquid level in the liquid tank, and under the liquid collection port of the liquid collection basin.
  • the collection basin is provided with a float that adjusts the buoyancy of the collection basin so that the rim maintains a constant range below the level of the liquid in the reservoir.
  • the liquid collecting weir can be maintained at a constant height from the liquid level, and significant fluctuation in the amount of liquid collection can be prevented.
  • the filter material is stacked on the upper surface of the porous horizontal support plate provided slightly above the bottom wall of the filtration tank, and the water to be treated passes upward through the horizontal support plate and the filter material.
  • the main filtration tank is a liquid tank
  • the main filtration tank is a liquid tank according to any one of the items (1) to (5).
  • the collecting basin can be swirled in the present filtration tank without using an external power such as electric power, so that the fresh water in the present filtration tank can be localized in the main filtration tank. It is possible to provide an upward filtration apparatus provided with a liquid collection device that can collect liquid efficiently without stagnation.
  • the present invention it is possible to swirl the liquid collection crucible without using an external power such as electric power, whereby the liquid in the liquid tank can be collected efficiently without staying locally in the liquid tank. It is possible to provide a liquid collecting device in a liquid tank and an upward filtration device provided with the same.
  • FIG. 2 is a cross-sectional plan view taken along line II-II of FIG.
  • FIG. 3 is an enlarged longitudinal front view of line III-III in FIG. 2; It is an expansion vertical side view in the IV-IV line of FIG.
  • FIG. 5 is an enlarged cross-sectional plan view taken along line VV of FIG. 3; It is a perspective view of the water collecting basin in the said embodiment. It is a perspective view of the modification of a water collection basin.
  • FIG. 9 is an enlarged cross-sectional plan view taken along line IX-IX of FIG. 8;
  • FIG. 10 is a front elevational view in the XX line of FIG. 9;
  • the interior of the cubic cube-shaped upward filtration tank 1 made of concrete is divided by the vertical partition 2 into a preliminary filtration tank 3 with a rather small width and a wide main filtration tank (liquid tank) 4 Divided by
  • the inflow pipe 5, which leads to the outside, is connected to an upper portion of the preliminary filtration tank 3, the inner end thereof is an upward pipe 6, and the upper end of the upward pipe 6 is near the upper end in the preliminary filtration tank 3. It is open to
  • a horizontal perforated plate 7 is held in a locked manner at the middle step of the preliminary filtration tank 3, and a suitable preliminary filtration material 8 is stacked on the upper surface of the perforated plate 7.
  • a sludge pipe 9 leading to the outside is provided.
  • the bottom wall 4 a of the filtration tank 4 is slightly inclined downward toward the bottom wall 3 a of the preliminary filtration tank 3, and a porous or grid-like horizontal support is received above the bottom wall 4 a of the filtration tank 4.
  • a plate 10 is provided.
  • a communication hole 11 is provided in the vertical partition 2 below the horizontal support plate 10.
  • a horizontal frame-like cleaning pipe 13 having a water discharge hole is provided in an embedded state at an appropriate height of the filter medium 12 and connected to a pressure water source (not shown).
  • a sludge plate 14 having a drainage groove 14a on the upper surface is erected with its upper surface substantially coinciding with the upper surface of the filtration material 12.
  • a water collecting device (water collecting device) 15 which will be described in detail later is provided in the vicinity of the upper end in the filtration tank 4, and the end of the drainage pipe (drainage pipe) 16 derived therefrom is It opens in the filtration rate adjustment tank 17 sectioned at the upper end on one side.
  • a notch plate 18 is provided in the filtration rate adjustment tank 17 slightly below the front end opening of the drainage pipe 16, and an outflow pipe 19 for filtered water leading to the outside is provided below the notch plate 18.
  • the wastewater from which the precipitate has been deposited is purified by passing through the horizontal backing plate 10 and the filter material 12 as known, and the filtered fresh water (liquid) A is collected by the water collector 15, drainage It is sent to the point of use through the pipe 16, the notch plate 18 and the outflow pipe 19.
  • the water collecting device 15 is floated on the fresh water A in the filtration tank 4 so as to be rotatable around the vertical axis B, and is a side plate facing each other across the center line C (see FIG. 2) orthogonal to the vertical axis B.
  • the fresh water A which is connected to the bottom plate 21 c of the weir 21 and the other end is connected to the drainage pipe 16 so that fresh water A accumulated in each water collecting weir 21 is discharged to the outside of the filtration tank 4 It has a pair of left and right branch pipes 23 and 23 forming a part.
  • Each water collecting basin 21 is adapted to be pivoted about the vertical axis B by the difference in hydraulic pressure acting on the outer side surfaces of the side plates 21a and 21b.
  • the water collection port 22 is provided at a point-symmetrical position with respect to the vertical axis B. That is, as shown in FIG. 6, in the right side of the vertical axis B in the water collecting basin 21, the side plate 21a on the front side and in the left side of the vertical axis B, the rear side plate 21b Two water collection ports 22 and 22 which are respectively inverted triangles are provided point-symmetrically.
  • the shape of the water collection port 22 is not limited to an inverted triangle, and may be an equilateral triangle, a rectangle, a trapezoid, an inverted trapezoid, a circle, or the like. Further, as shown in FIG. 7, the rectangular notch 30 formed at the upper edge of each side plate 21 a, 21 b of the water collecting basin 21 may be used as the water collecting port 22.
  • Each water collecting basin 21 has an upward U shape in which the side plates 21a and 21b are erected from both side edges of the horizontally long bottom plate 21c, and the lower edge of the water collecting port 22 is a main filtration tank 4 at both ends in the longitudinal direction.
  • a pair of rectangular solid floats 24, 24 are provided to adjust the buoyancy of the water collecting basin 21 so as to maintain a certain range lower than the water surface of the fresh water A inside.
  • the shape of the floats 24 and 24 is not limited to a rectangular parallelepiped, and may be a sphere or other shape, and the floats 24 and 24 may be attached to the side plates 21a and 21b or the bottom plate 21c of the water collecting basin 21. is there.
  • the water collecting basin 21 can be maintained at a certain height from the water surface, and the water collection amount is large. Fluctuation can be prevented.
  • a drain cylinder (drain cylinder) 25 facing downward is provided at the central portion in the longitudinal direction of the bottom plate 21 c in each water collecting basin 21, as shown in FIG. 4.
  • the respective water collecting weirs 21 are fitted to the opening 23a of the inverted U-shaped branch pipe 23 so as to be rotatable and slidable in the vertical direction, whereby the openings of the branch pipes 23 are formed. It can be pivoted about 23 a and can be moved up and down. The center of the opening 23a is aligned with the vertical axis B.
  • a flow straightening plate 21d is separated from the bottom plate 21c by an appropriate distance. It is installed between the side plates 21a and 21b.
  • a seal material (not shown) may be provided at the edge of the opening 23a of the branch pipe 23 to achieve watertightness (liquid tightness) between the branch pipe 23 and the drainage cylinder 25, from the gap A leak of fresh water A is not provided because it does not matter with regard to the collection of fresh water A.
  • each water collecting basin 21 abuts on the edge of the opening 23a of the branch pipe 23, the further lowering of the water collecting basin 21 is stopped.
  • the fresh water A flowing down the drainage cylinder 25 is guided in a spiral on the inner surface of the lower end opening of the drainage cylinder 25 so that the reaction of the turning of the water collecting basin 21 Spiral flow forming means 26 adapted to promote
  • the spiral flow forming means 26 is a plurality of spiral deflection surfaces 26a provided on the inner surface of the lower end of the drainage cylinder 25 which is gradually reduced in diameter downward.
  • the twisting direction of the spiral deflection surface 26a should be such as to promote the turning of the water collecting weir 21 due to the difference in the hydraulic pressure of the fresh water A acting on the outer side surfaces of the both side plates 21a, 21b. That is, since the water collecting basin 21 is turned clockwise as shown by the arrow in FIG. 2 by the difference in the hydraulic pressure of the fresh water A, the twisting direction of the spiral deflection surface 26a is the arrow in FIG. As shown, it must be counterclockwise.
  • the spiral flow forming means 26 is not limited to the spiral deflection surface 26a, and may be a plurality of spiral deflection plates (not shown) provided on the inner surface of the lower end portion of the drainage cylinder 25. As shown in FIG. 10, it is also possible to use a screw 37 whose wing end is fixed to the inner surface of the lower end portion of the drainage cylinder 25.
  • the fresh water A stored in the water collecting basin 21 is spirally swirled by the swirling surface 26a when flowing down in the drainage cylinder 25, and the swirling surface at that time
  • the reaction that the water 26 a receives from the running water promotes the turning of the water collecting basin 21.
  • the lower end of an air venting pipe 27 is connected to an appropriate position of the drain pipe 16 so that the upper end is opened above the liquid level of the fresh water A in the filtration tank 4.
  • fresh water A in the present filtration tank 4 flows into the water collection basin 21 from the water collection port 22 of each water collection basin 21, and drains therefrom through the drainage cylinder 25 and the branch pipe 23. It joins in the pipe 16 and is further discharged out of the present filtration tank 4 through the drainage pipe 16.
  • the pressure receiving area for receiving the water pressure on the outside of the side plates 21a and 21b facing each other has no water collecting port 22
  • the side plate 21a, 21b is the opening area of the water collection port 22 (more exactly, the opening area of the water collection port 22 below the water surface of the fresh water A) than the side plate 21b, 21a where the water collection port 22 is provided. Because of the difference in pressure receiving area, the pressure of fresh water A in the filtration tank 4 causes the water collecting basin 21 to move around the vertical axis B, as shown by arrows in FIGS. 2 and 6. As shown, it is made to turn toward the side plates 21b and 21a on which the water collection port 22 is provided.
  • the pressure of fresh water A in the filtration tank 4 is used to swirl the water collecting basin 21, there is no need to use an external power such as electric power as in the case of using a stirring device, and equipment cost and maintenance Cost can be reduced. Furthermore, since the water collecting basin 21 collects water while swirling in the main filtration tank 4, it is possible to collect water uniformly and efficiently from a wide range of water surface from the fixed type water collecting basin.
  • the drainage pipe 25 facing downward from the bottom plate 21c of the water collecting basin 21 is rotatably fitted to the opening 23a of the branching pipe 23 inside the filtration tank 4 facing upward, Not only can the water collecting basin 21 be rotatable about the vertical axis B and stably supported by using the drainage pipe 16 but also the fresh water A stored in the water collecting basin 21 with the drainage cylinder 25 It can drain smoothly out of this filtration tank 4 through branch pipe 23, drainage pipe 16 grade.
  • the water collecting basin 21 can be swirled without using an external power such as electric power, and hence the main filtration It is possible to provide an upward filtration apparatus in which fresh water A in the tank 4 can be efficiently collected without staying locally in the filtration tank 4.
  • FIGS. 8 to 10 show a water collecting basin (liquid collecting basin) in a second embodiment of the liquid collecting apparatus in a liquid tank according to the present invention.
  • the same or similar members as in the first embodiment of the liquid collection device in the liquid tank of the present invention are indicated by the same reference numerals and symbols, and detailed description thereof will be omitted. .
  • the water collecting basin (liquid collecting basin) 31 is the same as the side plates 21a and 21b, the bottom plate 21c, the flow straightening plates 21d, the floats 24 and 24, and the drain cylinder 25 in the first embodiment of the liquid collecting apparatus.
  • the side plates 31a and 31b, the bottom plate 31c, the flow straightening plate 31d, the floats 32 and 32, and the drain cylinder 33 are provided.
  • a plurality of circular water collection ports (water collection ports) 34 having the same dimensions are provided at positions facing each other. Therefore, since the hydraulic pressure of the fresh water A acting on the outer side surfaces of the side plates 31a and 31b is the same, the swirling force is not generated due to the difference in the hydraulic pressure.
  • the lower end portion of the drainage cylinder 33 is gradually reduced in diameter downward, and on the inner surface of the lower end portion, a screw in which a plurality of blades 36 are projected at equal intervals in the circumferential direction on the outer periphery of the hub 35 37 are provided so that the blade end of each blade 36 is fixed to the inner surface of the lower end portion of the drain cylinder 33.
  • the upper surface of each blade 36 in the screw 37 spirally guides the fresh water A flowing down the drainage cylinder 33 in the same manner as the curved surface 26 a in the inner surface of the drainage cylinder 25 in the first embodiment of the liquid collecting device.
  • the reaction forms a deflecting surface that generates a force that causes the collecting rod 31 to pivot about the vertical axis B.
  • the drainage cylinder 33 is rotatably and vertically slidable in the opening 23a facing upward of the branch pipe 23 in the first embodiment and is fitted from above, and the water collecting rod 31 is an opening of the branch pipe 23 It is supported as pivotable and ascendable and descendable about the center of 23 a, that is, the vertical axis B.
  • the screw 37 is provided in the drainage cylinder 33, and guides the fresh water A flowing in the drainage cylinder 33 in a spiral shape, so that the water collecting weir 31 is branched by the reaction.
  • the spiral flow forming means 38 is made to pivot about the opening 23a of the.
  • the water collection weir 31 is pivoted only by the spiral flow forming means 38.
  • the water collecting weir 31 is pivoted in the opposite direction to the above. be able to.
  • the present invention is not limited only to the above-described embodiment, and can be implemented, for example, in the following many modified modes without departing from the scope of the claims.
  • the spiral flow forming means 26 shown in FIGS. 3 to 5 is omitted, that is, the lower end portion of the drainage cylinder 25 is formed into a simple cylindrical or inverted truncated cone without providing the inner surface 26a with the inner surface.
  • the water collecting weir 21 is made to turn only by the difference in the hydraulic pressure of the fresh water A acting on the outer side surfaces of the side plates 21a and 21b facing each other in the water weir 21.
  • Only one collection basin 21 and one branch pipe 23 are provided.
  • Three or more water collection basins 21 and branch pipes 23 are juxtaposed.
  • the water collecting basin 21 is pivotably attached, for example, to a support (not shown) erected at the upper end of the sludge removal plate 14.
  • a drainage cylinder 25 is provided on the lower surface of one end of the bottom plate 21c of the water collecting basin 21 so that the water collecting basin 21 turns around the one side end.
  • Water collecting ports having different opening areas are provided in portions of the water collecting basin 21 away from the vertical axes B of the side plates 21a and 21b facing each other, and the side plates 21a and 21b are based on the difference in the opening area of the water collecting ports. The difference in the hydraulic pressure acting on the outer surface allows the collecting basin 21 to be pivoted about the vertical axis B.
  • the said embodiment is a case when the water collection apparatus in the liquid tank of this invention is applied to an upward filtration apparatus, this invention is not limited to this, For example, it stores in a storage tank etc.
  • the present invention can be applied to a collecting device for collecting waste water, industrial waste, oil, drinking water and other liquids.
  • the filtration target is the filtered fresh water A that has been purified by passing through the filter material 12, so the filtration tank 4, the water collection device 15, the drainage pipe 16, and the water collection basin 21.
  • the target of water collection is a factory waste liquid, oil or other liquid other than water, a liquid tank, a liquid collecting device, a drainage pipe, liquid collection
  • terms such as sputum, collection ports, drainage tubes, etc., they are described in parentheses after each of the above terms, and in the claims, the terms in the broader concept are used. It was.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Physical Water Treatments (AREA)

Abstract

Provided are a liquid collection device, wherein a liquid collection conduit can be swirled without using external power and by this means liquid within a liquid tank can be collected efficiently without local retention within the liquid tank, and an upflow filtration device provided with the same. A water collection device 15 is configured so as to be provided with: water collection conduits 21 that are floated rotatably around a vertical axis B in clean water within a main filtration tank 4, are provided with water collection openings 22 provided in parts separate from the vertical axis B in any one of side plates 21a facing each other across a center line C orthogonal to the vertical axis B, and are swirled around the vertical axis B by a water pressure differential acting on the outside surface of the two side plates 21a; and water discharge pipes 16, 23 one end of which is connected to the water collection conduits 21, the other end of which is disposed on the outside of the main filtration tank 4, and that discharge clean water A collected within the water collection conduit 21 to the outside of the main filtration tank 4.

Description

液槽内における集液装置、およびそれを備える上向ろ過装置Liquid collection device in liquid tank, and upward filtration device provided with the same
　本発明は、液槽内における集液装置、およびそれを備える上向ろ過装置に関する。 BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a liquid collecting device in a liquid tank and an upward filtration device provided with the same.
　汚水を、ろ過材内を上方へ向かって通過させることにより、ろ過させるようにした上向ろ過装置においては、ろ過済みの清水は、ろ過材の上方に配設した集水装置より、それに接続した集水管を通って、外部に排出されるようになっている(例えば特許文献１～３参照)。 In the upward filtration apparatus in which the sewage is filtered by passing upward through the filter medium, the filtered fresh water is connected to the water collection apparatus disposed above the filter medium. The water is discharged to the outside through a water collection pipe (see, for example, Patent Documents 1 to 3).
　従来の集水装置には、集水樋を、その上縁がろ過槽内の清水の水面より下位となるようにしてろ過槽内に固定し、集水樋内に溢流した清水を、集水樋に接続した集水管を経て外部に排出するようにした樋状のもの(例えば特許文献１および２参照)と、水平とした集水管を、ろ過槽内の清水の水面より下方に配設し、集水管の外周に設けた複数の集水孔を通って集水管内に流入した清水を、集水管を通って外部に排出するようにしたもの(例えば特許文献３参照)とがある。 In the conventional water collecting apparatus, the water collecting basin is fixed in the filtration tank so that the upper edge thereof is lower than the water surface of the fresh water in the filtering tank, and the fresh water overflowing into the water collecting basin is collected A weir-shaped one (for example, see Patent Documents 1 and 2) which is discharged to the outside through a water collection pipe connected to a water tank and a horizontal water collection pipe are disposed below the surface of fresh water in the filtration tank. And fresh water flowing into the water collection pipe through a plurality of water collection holes provided on the outer periphery of the water collection pipe and discharged to the outside through the water collection pipe (see, for example, Patent Document 3).
特許第３４７５２０１号公報Patent No. 3475201 gazette 特許第３５４３９６５号公報Patent No. 3543965 gazette 特許第３７６９５６１号公報Patent No. 3679561 gazette
　しかし、特許文献１～３に記載されている従来の上向ろ過装置においては、ろ過槽内における清水の集水範囲が小さいため、集水装置から離れた場所や、ろ過槽内のコーナー部において、清水の表面水が長時間滞留することがある。
　このような清水が長時間滞留した部分においては、清水中に含まれる微粒子が、その自己凝集力によって凝縮し、凝集塊となって浮遊することがある。 However, in the conventional upward filtration apparatus described in Patent Documents 1 to 3, since the fresh water collection range in the filtration tank is small, it is in a place away from the water collection apparatus or in a corner portion in the filtration tank. Surface water of fresh water may stay for a long time.
In a portion where such fresh water remains for a long time, the fine particles contained in the fresh water may be condensed by their self-cohesive force to float in the form of aggregates.
　このような微粒子の凝集塊の発生を防止するためには、清水が局所に滞留することなく、速やかに集水されるようにすることが必要である。
　そのためには、ろ過槽内の清水を低速で攪拌させることが考えられるが、そのためには、攪拌装置を駆動するための電力等の動力が必要となり、設備費用や維持費用がかかることになる。 In order to prevent the generation of such aggregates of fine particles, it is necessary for fresh water to be collected promptly without staying locally.
For this purpose, it is conceivable to stir the fresh water in the filtration tank at a low speed, but this requires power such as electric power to drive the stirring device, which causes equipment costs and maintenance costs.
　このような問題は、上向ろ過装置に限ったものではなく、例えば、汚水、工場廃液、飲料水、その他の液体を貯留する液槽内の液体を集液する集液装置に共通する問題である。 Such a problem is not limited to the upward filtration device, and is, for example, a problem common to the liquid collecting device for collecting the liquid in the liquid tank storing the waste water, factory waste liquid, drinking water, and other liquids. is there.
　本発明は、従来の技術が有する上記のような問題点に鑑みてなされたもので、電力等の外部動力を使用することなく、集液樋を旋回させることができ、もって液槽内の液体を、液槽内の局所に滞留することなく、効率よく集液できるようにした液槽内における集液装置、およびそれを備える上向ろ過装置を提供することを目的としている。 The present invention has been made in view of the problems as described above which the prior art has, and it is possible to swirl the liquid collecting crucible without using an external power such as electric power, and thereby the liquid in the liquid tank It is an object of the present invention to provide a liquid collection device in a liquid tank that can collect liquid efficiently without staying locally in the liquid tank, and an upward filtration apparatus provided with the same.
　本発明によると、上記課題は、次のようにして解決される。
（１）液槽内における液体を集液する装置において、前記液槽内の液体に、垂直軸回りに回転可能として浮かべられ、かつ前記垂直軸と直交する中心線を挟んで互いに対向する側板のいずれか一方のみにおける前記垂直軸から離れた部分に集液口を設けるか、または前記両側板に開口面積が異なる集液口を設け、前記両側板の外側面に作用する液圧の差によって、前記垂直軸回りに旋回させられるようにした集液樋と、一端が前記集液樋に接続され、かつ他端が前記液槽外に配設され、前記集液樋内に溜まった液体を前記液槽外に排出する排液管とを備えるものとする。 According to the present invention, the above problems are solved as follows.
(1) In an apparatus for collecting liquid in a liquid tank, the liquid in the liquid tank is floated so as to be rotatable about a vertical axis, and of side plates opposed to each other across a center line orthogonal to the vertical axis. A liquid collection port is provided at a portion apart from the vertical axis in either one side, or a liquid collection port having a different opening area is provided in the both side plates, and a difference in hydraulic pressure acting on the outer surface of the both side plates A liquid collecting crucible adapted to be pivoted about the vertical axis, and one end thereof is connected to the liquid collecting crucible, and the other end is disposed outside the liquid tank, and the liquid accumulated in the liquid collecting crucible is It shall be equipped with a drainage pipe drained out of a liquid tank.
　このような構成によると、液槽内の液体は、集液樋の集液口より集液樋内に流入し、そこから排液管を通って液槽外に排出される。
　集液樋における中心線を挟んで互いに対向する側板の外側の液圧を受ける受圧面積は、集液口が設けられていない側板、または開口面積が小さい集液口が設けられている側板の方が、集液口が設けられている側板、または開口面積が大きい集液口が設けられている側板の方より、集液口の開口面積、または集液口の開口面積の差に相当する分だけ大であるので、その受圧面積の差によって、集液樋は、液槽内の液体の圧力により、垂直軸を中心として、集液口が設けられている側板、または開口面積が大きい集液口が設けられている側板の方に向かって旋回させられる。
　この集液樋の旋回により、液槽内の液体に流れが生じるので、液槽内の液体が液槽内の局所に滞留するのを防止することができ、もって、液体の滞留時に生じるおそれのある微粒子の凝集塊の発生を防止することができる。
　しかも、液槽内の液体の圧力を利用して集液樋を旋回させるので、攪拌装置を用いる場合のように、電力等の外部動力を使用する必要がなく、設備費用や維持費用を低減することができる。
　さらに、集液樋は、液槽内において旋回しつつ集液するので、固定式の集液樋より、広範囲の液面から均一に効率よく集液することができる。 According to such a configuration, the liquid in the liquid tank flows from the liquid collection port of the liquid collection tank into the liquid collection tank, and is discharged from the liquid tank through the drainage pipe from there.
The pressure receiving area for receiving the fluid pressure on the outside of the side plates facing each other across the center line in the liquid collection basin is the side plate not provided with the liquid collection port, or the side plate provided with the liquid collection port having a small opening area Is equivalent to the difference in the opening area of the liquid collection port or the opening area of the liquid collection port from the side plate provided with the liquid collection port or the side plate provided with the liquid collection port having a large opening area Because of the difference in pressure receiving area, the fluid collecting basin is provided with a side plate provided with a fluid collecting port or a fluid collecting opening having a large opening area around the vertical axis by the pressure of the liquid in the fluid tank. It is pivoted towards the side plate where the mouth is provided.
Since the flow in the liquid in the liquid tank is generated by the swirling of the collecting basin, the liquid in the liquid tank can be prevented from staying locally in the liquid tank, which may cause the liquid to stagnate. It is possible to prevent the generation of clumps of certain fine particles.
Moreover, since the liquid collecting crucible is swirled by utilizing the pressure of the liquid in the liquid tank, it is not necessary to use an external power such as electric power as in the case of using a stirring device, thereby reducing equipment cost and maintenance cost. be able to.
Furthermore, since the liquid collecting basin collects the liquid while swirling in the liquid tank, it is possible to collect the liquid uniformly and efficiently from a wide range of liquid level from the fixed type liquid collecting basin.
（２）上記(１)項において、前記集液樋における底板に設けた下方を向く排液筒を、前記液槽内に設けた前記排液管における上方を向く開口部に回転可能として嵌合し、前記集液樋を前記排液管の開口部を中心として旋回可能とする。 (2) In the above item (1), the downwardly facing liquid drainage cylinder provided on the bottom plate of the liquid collection basin is rotatably fitted in the upwardly facing opening of the liquid drainage tube provided in the liquid tank And the liquid collecting crucible can be pivoted about the opening of the drainage pipe.
　このような構成によると、排液管を利用して、集液樋を垂直軸回りに回転可能として安定よく支持することがでるだけでなく、集液樋に貯留した液体を、排液筒と排液管とを通して、液槽外に円滑に排出することができる。 According to such a configuration, not only the liquid collecting tub can be rotated about the vertical axis and stably supported using the drainage pipe, but the liquid stored in the liquid collecting tub can be used as a drainage cylinder and It can be discharged smoothly out of the liquid tank through the drainage pipe.
（３）上記(２)項において、前記排液筒内に、その中を流下する液体を螺旋状に案内することにより、その反作用で、前記集液樋の旋回を助長させるようにした螺旋流形成手段を設ける。 (3) In the above item (2), a spiral flow in which the swirling of the liquid collection weir is promoted by the reaction by guiding the liquid flowing down in the helical shape in the drainage cylinder. Providing forming means.
　このような構成によると、排液筒から旋回流が排液管に流下することにより、集液樋の旋回を助長させることができる。 According to such a configuration, it is possible to promote the swirling of the liquid collection weir by flowing down the swirling flow from the drainage cylinder to the drainage pipe.
（４）液槽内における液体を集液する装置において、一端が前記液槽内において上方に向かって開口するように配設され、かつ他端が前記液槽外に配設された排液管と、前記液槽内の液体に浮かべられ、外周壁の一部に集液口が設けられ、かつ底板に下方を向く排液筒が設けられ、前記排液筒が前記排液管の一端の開口部に回転可能として嵌合され、前記集液口より流入した前記液槽内の液体を前記排液筒より前記排液管に流出するようにした横長の集液樋と、前記集液樋における排液筒内に設けられ、前記排液筒内を流れる液体を螺旋状に案内することにより、その反作用で前記集液樋を前記排液管の一端の開口部を中心として旋回させる螺旋流形成手段とを備えるものとする。 (4) A device for collecting liquid in a liquid tank, wherein one end is disposed so as to open upward in the liquid tank, and the other end is disposed outside the liquid tank. And a liquid drainage port floats on the liquid in the liquid tank, a liquid collection port is provided in a part of the outer peripheral wall, and a bottom plate is provided with a liquid discharge cylinder facing downward, the liquid discharge cylinder being one end of the liquid discharge pipe. A horizontally long liquid collecting weir that is rotatably fitted to the opening and allows the liquid in the liquid tank that has flowed in from the liquid collecting port to flow out from the liquid discharge pipe to the liquid discharge pipe; A spiral flow which is provided in the drainage cylinder and guides the liquid flowing in the drainage cylinder in a spiral shape, thereby causing the liquid collecting crucible to swirl around the opening at one end of the drainage pipe by its reaction. And forming means.
　このような構成によると、液槽内の液体は、集液樋の集液口より集液樋内に流入し、そこから排液管を通って液槽外に排出される。
　液体が排液管内を流下するとき、液体は螺旋流形成手段により螺旋状に流れるように案内され、そのときの反作用により、排液管およびそれと一体の集液樋全体は、排液管の一端の開口部を中心として旋回させられる。
　この集液樋の旋回により、液槽内の液体に流れが生じるので、液槽内の液体が液槽内の局所に滞留するのを防止することができ、もって、液体の滞留時に生じるおそれのある微粒子の凝集塊の発生を防止することができる。
　しかも、排液管内を流下する液体の流下するエネルギーを利用して集液樋を旋回させるので、攪拌装置を用いる場合のように、電力等の外部動力を使用する必要がなく、設備費用や維持費用を低減することができる。
　さらに、集液樋は、液槽内において旋回しつつ集液するので、固定式の集液樋より、広範囲の液面から均一に効率よく集液することができる。 According to such a configuration, the liquid in the liquid tank flows from the liquid collection port of the liquid collection tank into the liquid collection tank, and is discharged from the liquid tank through the drainage pipe from there.
When the liquid flows down the drainage pipe, the liquid is guided to flow spirally by the spiral flow forming means, and by the reaction at that time, the drainage pipe and the whole collecting basin integrated therewith are one end of the drainage pipe It is pivoted around the opening of the.
Since the flow in the liquid in the liquid tank is generated by the swirling of the collecting basin, the liquid in the liquid tank can be prevented from staying locally in the liquid tank, which may cause the liquid to stagnate. It is possible to prevent the generation of clumps of certain fine particles.
Moreover, since the liquid collecting crucible is swirled by utilizing the energy of the liquid flowing down the drainage pipe, there is no need to use an external power such as electric power as in the case of using a stirring apparatus, and the facility cost and maintenance Cost can be reduced.
Furthermore, since the liquid collecting basin collects the liquid while swirling in the liquid tank, it is possible to collect the liquid uniformly and efficiently from a wide range of liquid level from the fixed type liquid collecting basin.
（５）上記(１)～(４)項のいずれかにおいて、前記集液樋を、前記液槽内の液体の液面とともに昇降可能として支持し、かつ前記集液樋における集液口の下縁が前記液槽内の液体の液面より下位の一定範囲を維持するように前記集液樋の浮力を調整するフロートを、前記集液樋に設ける。 (5) In any one of the above items (1) to (4), the liquid collection basin is supported so as to be movable up and down together with the liquid level in the liquid tank, and under the liquid collection port of the liquid collection basin. The collection basin is provided with a float that adjusts the buoyancy of the collection basin so that the rim maintains a constant range below the level of the liquid in the reservoir.
　このような構成によると、液槽内の液面の位置が変動しても、集液樋を液面から一定の高さに維持することができ、集液量の大幅な変動を防止することができる。 According to such a configuration, even if the position of the liquid level in the liquid tank changes, the liquid collecting weir can be maintained at a constant height from the liquid level, and significant fluctuation in the amount of liquid collection can be prevented. Can.
（６）本ろ過槽の底壁のやや上方に設けた多孔の水平受板の上面に、本ろ過材を重積し、被処理水が前記水平受板と本ろ過材とを上向きに通過することにより、ろ過されるようにした上向ろ過装置において、前記本ろ過槽を液槽とし、かつ前記本ろ過槽に、上記(１)～(５)項のいずれかに記載の液槽内における集液装置を設ける。 (6) The filter material is stacked on the upper surface of the porous horizontal support plate provided slightly above the bottom wall of the filtration tank, and the water to be treated passes upward through the horizontal support plate and the filter material. In the upward filtration apparatus configured to be filtered, the main filtration tank is a liquid tank, and the main filtration tank is a liquid tank according to any one of the items (1) to (5). Provide a liquid collection device.
　このような構成によると、本ろ過槽内において、集液樋を、電力等の外部動力を使用することなく旋回させることができ、もって本ろ過槽内の清水を、本ろ過槽内の局所に滞留することなく、効率よく集液できるようにした集液装置を備える上向ろ過装置を提供することができる。 According to such a configuration, the collecting basin can be swirled in the present filtration tank without using an external power such as electric power, so that the fresh water in the present filtration tank can be localized in the main filtration tank. It is possible to provide an upward filtration apparatus provided with a liquid collection device that can collect liquid efficiently without stagnation.
　本発明によると、電力等の外部動力を使用することなく、集液樋を旋回させることができ、もって液槽内の液体を、液槽内の局所に滞留することなく、効率よく集液できるようにした液槽内における集液装置、およびそれを備える上向ろ過装置を提供することができる。 According to the present invention, it is possible to swirl the liquid collection crucible without using an external power such as electric power, whereby the liquid in the liquid tank can be collected efficiently without staying locally in the liquid tank. It is possible to provide a liquid collecting device in a liquid tank and an upward filtration device provided with the same.
本発明の液槽内における集液装置の第１の実施形態を備える上向ろ過装置の一実施形態の概略縦断正面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic longitudinal front view of one Embodiment of an upward filtration apparatus provided with 1st Embodiment of the liquid collection apparatus in the liquid tank of this invention. 図１のII－II線における横断平面図である。FIG. 2 is a cross-sectional plan view taken along line II-II of FIG. 図２のIII－III線における拡大縦断正面図である。FIG. 3 is an enlarged longitudinal front view of line III-III in FIG. 2; 図２のIV－IV線における拡大縦断側面図である。It is an expansion vertical side view in the IV-IV line of FIG. 図３のV－V線における拡大横断平面図である。FIG. 5 is an enlarged cross-sectional plan view taken along line VV of FIG. 3; 上記実施形態における集水樋の斜視図である。It is a perspective view of the water collecting basin in the said embodiment. 集水樋の変形例の斜視図である。It is a perspective view of the modification of a water collection basin. 本発明の液槽内における集液装置の第２の実施形態における集水樋を示す斜視図である。It is a perspective view which shows the water collecting basin in 2nd Embodiment of the liquid collection apparatus in the liquid tank of this invention. 図８のIX－IX線における拡大横断平面図である。FIG. 9 is an enlarged cross-sectional plan view taken along line IX-IX of FIG. 8; 図９のX－X線における縦断正面図である。FIG. 10 is a front elevational view in the XX line of FIG. 9;
　以下、本発明の液槽内における集液装置の第１の実施形態を備える上向ろ過装置の一実施形態を、図１～図６を参照して説明する。
　この上向ろ過装置の基本的な構成は、特許文献１に記載されているものと同様であるので、それらについては簡単に説明し、その後に、本発明に係る集液装置の第１の実施形態について詳細に説明する。 Hereinafter, one embodiment of the upward filtration apparatus provided with the first embodiment of the liquid collection device in the liquid tank of the present invention will be described with reference to FIGS. 1 to 6.
Since the basic configuration of this upward filtration apparatus is the same as that described in Patent Document 1, they will be briefly described, and then, the first embodiment of the liquid collection apparatus according to the present invention will be described. The form will be described in detail.
　図１および図２に示すように、コンクリート製の立方体状の上向ろ過槽１の内部は、垂直隔壁２により、やや小幅の予備ろ過槽３と、広幅の本ろ過槽(液槽)４とに仕切られている。
　予備ろ過槽３の上部適所には、外部へ通ずる流入管５が接続され、その内端は、上向管６となっており、上向管６の上端は、予備ろ過槽３内の上端付近に開口している。 As shown in FIG. 1 and FIG. 2, the interior of the cubic cube-shaped upward filtration tank 1 made of concrete is divided by the vertical partition 2 into a preliminary filtration tank 3 with a rather small width and a wide main filtration tank (liquid tank) 4 Divided by
The inflow pipe 5, which leads to the outside, is connected to an upper portion of the preliminary filtration tank 3, the inner end thereof is an upward pipe 6, and the upper end of the upward pipe 6 is near the upper end in the preliminary filtration tank 3. It is open to
　予備ろ過槽３の中段部には、水平の多孔板７が係止保持され、多孔板７の上面には、適宜の予備ろ過材８が重積されている。本ろ過槽４との反対側において、予備ろ過槽３の下端には、外部へ通じる排泥管９が設けられている。 A horizontal perforated plate 7 is held in a locked manner at the middle step of the preliminary filtration tank 3, and a suitable preliminary filtration material 8 is stacked on the upper surface of the perforated plate 7. At the lower end of the preliminary filtration tank 3 on the opposite side to the main filtration tank 4, a sludge pipe 9 leading to the outside is provided.
　本ろ過槽４の底壁４ａは、予備ろ過槽３の底壁３ａの方へ向かって、やや下向傾斜し、本ろ過槽４の底壁４ａの上方には、多孔もしくは格子状の水平受板１０が配設されている。 The bottom wall 4 a of the filtration tank 4 is slightly inclined downward toward the bottom wall 3 a of the preliminary filtration tank 3, and a porous or grid-like horizontal support is received above the bottom wall 4 a of the filtration tank 4. A plate 10 is provided.
　水平受板１０の下方において前記垂直隔壁２には、連通孔１１が設けられている。 A communication hole 11 is provided in the vertical partition 2 below the horizontal support plate 10.
　水平受板１０の上面には、上方へ向かって順次粒度が小となる砕石もしくは砂利、および砂その他任意の材料からなる本ろ過材１２が、適宜の高さに重積されている。 On the upper surface of the horizontal support plate 10, a main filter material 12 made of crushed stone or gravel, whose size becomes gradually smaller toward the upper side, and sand or any other material, is stacked at an appropriate height.
　本ろ過材１２の適宜の高さのところに、図示しない圧力水源に連なり、かつ吐水孔を有する水平枠状の洗浄管１３が埋込み状態で設けられている。 A horizontal frame-like cleaning pipe 13 having a water discharge hole is provided in an embedded state at an appropriate height of the filter medium 12 and connected to a pressure water source (not shown).
　本ろ過材１２の適所には、上面に排泥溝１４ａを有する排泥板１４が、その上面を本ろ過材１２の上面とほぼ一致させて立設されている。 At an appropriate position of the filtration material 12, a sludge plate 14 having a drainage groove 14a on the upper surface is erected with its upper surface substantially coinciding with the upper surface of the filtration material 12.
　本ろ過槽４内の上端付近には、後に詳細に説明する集水装置(集液装置)１５が設けられ、そこから導出した排水管(排液管)１６の先端は、本ろ過槽４の一側上端に区画形成したろ過速度調整槽１７内に開口している。 A water collecting device (water collecting device) 15 which will be described in detail later is provided in the vicinity of the upper end in the filtration tank 4, and the end of the drainage pipe (drainage pipe) 16 derived therefrom is It opens in the filtration rate adjustment tank 17 sectioned at the upper end on one side.
　排水管１６の先端開口部よりやや下方においてろ過速度調整槽１７内にはノッチ板１８が設けられ、その下方には、外部へ通じるろ過水の流出管１９が設けられている。 A notch plate 18 is provided in the filtration rate adjustment tank 17 slightly below the front end opening of the drainage pipe 16, and an outflow pipe 19 for filtered water leading to the outside is provided below the notch plate 18.
　流入管５から流入して、予備ろ過槽３内を下降し、予備ろ過材８および多孔板７を通過した汚水は、垂直隔壁２の連通孔１１を通って、本ろ過槽４における水平受板１０より下方に形成された沈殿槽２０内へ流入し、緩速で移動する。 Sewage which has flowed in from the inflow pipe 5 and descended in the preliminary filtration tank 3 and has passed through the preliminary filtration material 8 and the porous plate 7 passes through the communication holes 11 of the vertical dividing wall 2 to form the horizontal support plate in the main filtration tank 4 It flows into the sedimentation tank 20 formed below 10 and moves at a slow speed.
　沈殿槽２０内において沈殿物を沈殿した汚水は、公知のように、水平受板１０および本ろ過材１２を通過して浄化され、ろ過済みの清水(液体)Ａは、集水装置１５、排水管１６、ノッチ板１８、流出管１９を経て使用個所へ送られる。 In the settling tank 20, the wastewater from which the precipitate has been deposited is purified by passing through the horizontal backing plate 10 and the filter material 12 as known, and the filtered fresh water (liquid) A is collected by the water collector 15, drainage It is sent to the point of use through the pipe 16, the notch plate 18 and the outflow pipe 19.
　次に、集水装置１５の詳細について説明する。
　この集水装置１５は、本ろ過槽４内の清水Ａに、垂直軸Ｂ回りに回転可能として浮かべられ、かつ垂直軸Ｂと直交する中心線Ｃ(図２参照)を挟んで互いに対向する側板２１ａ、２１ｂのいずれか一方における垂直軸Ｂから離れた部分に集水口(集液口)２２が設けられた左右１対の集水樋(集液樋)２１、２１と、一端が各集水樋２１の底板２１ｃに接続され、かつ他端が上記排水管１６に接続されて、各集水樋２１内に溜まった清水Ａを本ろ過槽４外に排出する、実質的に排水管１６の一部をなす左右１対の分岐管２３、２３とを備えている。
　各集水樋２１は、両側板２１ａ、２１ｂの外側面に作用する液圧の差によって、垂直軸Ｂ回りに旋回させられるようになっている。 Next, details of the water collecting device 15 will be described.
The water collecting device 15 is floated on the fresh water A in the filtration tank 4 so as to be rotatable around the vertical axis B, and is a side plate facing each other across the center line C (see FIG. 2) orthogonal to the vertical axis B. A pair of left and right water collecting basins (liquid collecting basins) 21 and 21 provided with a water collecting port (water collecting port) 22 at a part away from the vertical axis B in any one of 21 a and 21 b The fresh water A which is connected to the bottom plate 21 c of the weir 21 and the other end is connected to the drainage pipe 16 so that fresh water A accumulated in each water collecting weir 21 is discharged to the outside of the filtration tank 4 It has a pair of left and right branch pipes 23 and 23 forming a part.
Each water collecting basin 21 is adapted to be pivoted about the vertical axis B by the difference in hydraulic pressure acting on the outer side surfaces of the side plates 21a and 21b.
　図６に示すように、集水口２２は、垂直軸Ｂに対して点対称の位置に設けられている。
　すなわち、図６に示すように、集水樋２１における垂直軸Ｂより右方の半部においては、前方の側板２１ａに、同じく垂直軸Ｂより左方の半部においては、後方の側板２１ｂに、それぞれ倒立三角形とした２個の集水口２２、２２が点対称に設けられている。 As shown in FIG. 6, the water collection port 22 is provided at a point-symmetrical position with respect to the vertical axis B.
That is, as shown in FIG. 6, in the right side of the vertical axis B in the water collecting basin 21, the side plate 21a on the front side and in the left side of the vertical axis B, the rear side plate 21b Two water collection ports 22 and 22 which are respectively inverted triangles are provided point-symmetrically.
　集水口２２の形状は、倒立三角形に限定されるものではなく、正三角形、長方形、台形、倒立台形、円形等とすることもある。
　また、図７に示す変形例のように、集水樋２１における各側板２１ａ、２１ｂの上縁部に形成した直方形の切り欠き３０を、集水口２２とすることもある。 The shape of the water collection port 22 is not limited to an inverted triangle, and may be an equilateral triangle, a rectangle, a trapezoid, an inverted trapezoid, a circle, or the like.
Further, as shown in FIG. 7, the rectangular notch 30 formed at the upper edge of each side plate 21 a, 21 b of the water collecting basin 21 may be used as the water collecting port 22.
　各集水樋２１は、水平の横長の底板２１ｃの両側縁より側板２１ａ、２１ｂが起立する上向きコ字状をなし、その長手方向の両端には、集水口２２の下縁が本ろ過槽４内の清水Ａの水面より下位の一定範囲を維持するように集水樋２１の浮力を調整する１対の直方体状のフロート２４、２４が設けられている。
　このフロート２４、２４の形状は直方体に限るものではなく、球体その他の形状とすることができ、また、フロート２４、２４を、集水樋２１の各側板２１ａ、２１ｂまたは底板２１ｃに取り付けることもある。 Each water collecting basin 21 has an upward U shape in which the side plates 21a and 21b are erected from both side edges of the horizontally long bottom plate 21c, and the lower edge of the water collecting port 22 is a main filtration tank 4 at both ends in the longitudinal direction. A pair of rectangular solid floats 24, 24 are provided to adjust the buoyancy of the water collecting basin 21 so as to maintain a certain range lower than the water surface of the fresh water A inside.
The shape of the floats 24 and 24 is not limited to a rectangular parallelepiped, and may be a sphere or other shape, and the floats 24 and 24 may be attached to the side plates 21a and 21b or the bottom plate 21c of the water collecting basin 21. is there.
　このフロート２４、２４を設けたことにより、本ろ過槽４内の清水Ａの水位が変動しても、集水樋２１を水面から一定の高さに維持することができ、集水量の大幅な変動を防止することができる。 By providing the floats 24, 24, even if the water level of the fresh water A in the filtration tank 4 fluctuates, the water collecting basin 21 can be maintained at a certain height from the water surface, and the water collection amount is large. Fluctuation can be prevented.
　図３および図４に示すように、各集水樋２１における底板２１ｃの長手方向の中央部には、下方を向く排水筒(排液筒)２５が設けられ、これを、図４に示すように、倒立Ｕ字状をなす分岐管２３における上方を向く開口部２３ａに回転可能、かつ上下方向に摺動可能として上方から嵌合することにより、各集水樋２１を分岐管２３の開口部２３ａを中心として旋回可能、かつ昇降可能としてある。
　開口部２３ａの中心は、垂直軸Ｂと一致させてある。 As shown in FIGS. 3 and 4, a drain cylinder (drain cylinder) 25 facing downward is provided at the central portion in the longitudinal direction of the bottom plate 21 c in each water collecting basin 21, as shown in FIG. 4. The respective water collecting weirs 21 are fitted to the opening 23a of the inverted U-shaped branch pipe 23 so as to be rotatable and slidable in the vertical direction, whereby the openings of the branch pipes 23 are formed. It can be pivoted about 23 a and can be moved up and down.
The center of the opening 23a is aligned with the vertical axis B.
　図２～図４、および図６に示すように、集水樋２１内における排水筒２５の上端開口部２３ａの上方には、整流板２１ｄが、底板２１ｃより適宜の間隔を隔てるようにして、両側板２１ａ、２１ｂ間に架設されている。 As shown in FIG. 2 to FIG. 4 and FIG. 6, above the upper end opening 23a of the drainage cylinder 25 in the water collecting basin 21, a flow straightening plate 21d is separated from the bottom plate 21c by an appropriate distance. It is installed between the side plates 21a and 21b.
　分岐管２３の開口部２３ａの縁部には、分岐管２３と排水筒２５との間の水密(液密)を図るためのシール材(図示略)を設けることもあるが、この間隙からの清水Ａの漏れは、清水Ａの集水に関しては問題にならないので設けてはいない。 Although a seal material (not shown) may be provided at the edge of the opening 23a of the branch pipe 23 to achieve watertightness (liquid tightness) between the branch pipe 23 and the drainage cylinder 25, from the gap A leak of fresh water A is not provided because it does not matter with regard to the collection of fresh water A.
　各集水樋２１は、その底板２１ｃが分岐管２３の開口部２３ａの縁部に当接することにより、それ以上の下降が停止させられるようになっている。 When the bottom plate 21c of each water collecting basin 21 abuts on the edge of the opening 23a of the branch pipe 23, the further lowering of the water collecting basin 21 is stopped.
　図３～図５に示すように、排水筒２５の下端開口部の内面には、排水筒２５内を流下する清水Ａを螺旋状に案内することにより、その反作用で、集水樋２１の旋回を助長させるようにした螺旋流形成手段２６が設けられている。
　この螺旋流形成手段２６は、本実施形態においては、下方に向かって漸次縮径させた排水筒２５の下端部の内面に設けた複数の螺旋状の反らせ面２６ａとしてある。 As shown in FIG. 3 to FIG. 5, the fresh water A flowing down the drainage cylinder 25 is guided in a spiral on the inner surface of the lower end opening of the drainage cylinder 25 so that the reaction of the turning of the water collecting basin 21 Spiral flow forming means 26 adapted to promote
In the present embodiment, the spiral flow forming means 26 is a plurality of spiral deflection surfaces 26a provided on the inner surface of the lower end of the drainage cylinder 25 which is gradually reduced in diameter downward.
　螺旋状の反らせ面２６ａのねじれ方向は、集水樋２１がその両側板２１ａ、２１ｂの外側面に作用する清水Ａの液圧の差によって旋回させられるのを助長させる方向でなければならない。
　すなわち、集水樋２１は、清水Ａの液圧の差によって、図２において矢印で示すように、時計回りに旋回させられるので、螺旋状の反らせ面２６ａのねじれ方向は、図５において矢印で示すように、反時計回りとしなければならない。 The twisting direction of the spiral deflection surface 26a should be such as to promote the turning of the water collecting weir 21 due to the difference in the hydraulic pressure of the fresh water A acting on the outer side surfaces of the both side plates 21a, 21b.
That is, since the water collecting basin 21 is turned clockwise as shown by the arrow in FIG. 2 by the difference in the hydraulic pressure of the fresh water A, the twisting direction of the spiral deflection surface 26a is the arrow in FIG. As shown, it must be counterclockwise.
　螺旋流形成手段２６は、この螺旋状の反らせ面２６ａに限定されるものではなく、排水筒２５の下端部の内面に設けた複数の螺旋状の反らせ板(図示略)としたり、図９および図１０に示すように、排水筒２５の下端部の内面に翼端を固着したスクリュー３７とすることもできる。 The spiral flow forming means 26 is not limited to the spiral deflection surface 26a, and may be a plurality of spiral deflection plates (not shown) provided on the inner surface of the lower end portion of the drainage cylinder 25. As shown in FIG. 10, it is also possible to use a screw 37 whose wing end is fixed to the inner surface of the lower end portion of the drainage cylinder 25.
　この螺旋流形成手段２６を設けたことにより、集水樋２１内に貯留された清水Ａは、排水筒２５内を流下するとき、反らせ面２６ａによって螺旋状に旋回させられ、そのときの反らせ面２６ａが流水より受ける反作用により、集水樋２１の旋回が助長される。 By providing the spiral flow forming means 26, the fresh water A stored in the water collecting basin 21 is spirally swirled by the swirling surface 26a when flowing down in the drainage cylinder 25, and the swirling surface at that time The reaction that the water 26 a receives from the running water promotes the turning of the water collecting basin 21.
　排水管１６の適所には、上端が本ろ過槽４内の清水Ａの液面より上方において開口するようにしたエア抜き用の通気管２７の下端が接続されている。 The lower end of an air venting pipe 27 is connected to an appropriate position of the drain pipe 16 so that the upper end is opened above the liquid level of the fresh water A in the filtration tank 4.
　この集水装置１５においては、本ろ過槽４内の清水Ａは、各集水樋２１の集水口２２より集水樋２１内に流入し、そこから排水筒２５および分岐管２３を通って排水管１６において合流し、さらに排水管１６を通って本ろ過槽４外に排出される。 In this water collection device 15, fresh water A in the present filtration tank 4 flows into the water collection basin 21 from the water collection port 22 of each water collection basin 21, and drains therefrom through the drainage cylinder 25 and the branch pipe 23. It joins in the pipe 16 and is further discharged out of the present filtration tank 4 through the drainage pipe 16.
　図６に示す集水樋２１における垂直軸Ｂを境とする左半部および右半部において、互いに対向する側板２１ａ、２１ｂの外側の水圧を受ける受圧面積は、集水口２２が設けられていない側板２１ａ、２１ｂの方が、集水口２２が設けられている側板２１ｂ、２１ａの方より、集水口２２の開口面積(より正確には、清水Ａの水面より下方の集水口２２の開口面積)に相当する分だけ大であるので、その受圧面積の差によって、集水樋２１は、本ろ過槽４内の清水Ａの圧力により、垂直軸Ｂを中心として、図２および図６に矢印で示すように、集水口２２が設けられている側板２１ｂ、２１ａの方に向かって旋回させられる。 In the left half and right half of the water collecting basin 21 shown in FIG. 6 with the vertical axis B as a boundary, the pressure receiving area for receiving the water pressure on the outside of the side plates 21a and 21b facing each other has no water collecting port 22 The side plate 21a, 21b is the opening area of the water collection port 22 (more exactly, the opening area of the water collection port 22 below the water surface of the fresh water A) than the side plate 21b, 21a where the water collection port 22 is provided. Because of the difference in pressure receiving area, the pressure of fresh water A in the filtration tank 4 causes the water collecting basin 21 to move around the vertical axis B, as shown by arrows in FIGS. 2 and 6. As shown, it is made to turn toward the side plates 21b and 21a on which the water collection port 22 is provided.
　この集水樋２１の旋回により、本ろ過槽４内の清水Ａに静かな流れが生じるので、本ろ過槽４内の清水Ａが本ろ過槽４内の局所に滞留するのを防止することができ、もって、清水Ａの滞留時に生じるおそれのある微粒子の凝集塊の発生を防止することができる。 Since a quiet flow is generated in the fresh water A in the main filtration tank 4 by the swirling of the water collecting basin 21, preventing the fresh water A in the main filtration tank 4 from staying locally in the main filtration tank 4 It is possible to prevent the generation of aggregates of fine particles that may occur during retention of fresh water A.
　しかも、本ろ過槽４内の清水Ａの圧力を利用して集水樋２１を旋回させるので、攪拌装置を用いる場合のように、電力等の外部動力を使用する必要がなく、設備費用や維持費用を低減することができる。
　さらに、集水樋２１は、本ろ過槽４内において旋回しつつ集水するので、固定式の集水樋より、広範囲の水面から均一に効率よく集水することができる。 Moreover, since the pressure of fresh water A in the filtration tank 4 is used to swirl the water collecting basin 21, there is no need to use an external power such as electric power as in the case of using a stirring device, and equipment cost and maintenance Cost can be reduced.
Furthermore, since the water collecting basin 21 collects water while swirling in the main filtration tank 4, it is possible to collect water uniformly and efficiently from a wide range of water surface from the fixed type water collecting basin.
　また、集水樋２１における底板２１ｃに設けた下方を向く排水筒２５を、本ろ過槽４内に設けた分岐管２３における上方を向く開口部２３ａに回転可能として嵌合することにより、分岐管２３、ひいては排水管１６を利用して、集水樋２１を垂直軸Ｂ回りに回転可能として安定よく支持することがでるだけでなく、集水樋２１に貯留した清水Ａを、排水筒２５と分岐管２３、排水管１６等とを通して、本ろ過槽４外に円滑に排出することができる。 In addition, the drainage pipe 25 facing downward from the bottom plate 21c of the water collecting basin 21 is rotatably fitted to the opening 23a of the branching pipe 23 inside the filtration tank 4 facing upward, Not only can the water collecting basin 21 be rotatable about the vertical axis B and stably supported by using the drainage pipe 16 but also the fresh water A stored in the water collecting basin 21 with the drainage cylinder 25 It can drain smoothly out of this filtration tank 4 through branch pipe 23, drainage pipe 16 grade.
　このような集水装置１５を、上向ろ過装置における本ろ過槽４に設けたことにより、集水樋２１を、電力等の外部動力を使用することなく、旋回させることができ、もって本ろ過槽４内の清水Ａを、本ろ過槽４内の局所に滞留することなく、効率よく集水できるようにした上向ろ過装置を提供することができる。 By providing such a water collecting apparatus 15 in the main filtration tank 4 in the upward filtration apparatus, the water collecting basin 21 can be swirled without using an external power such as electric power, and hence the main filtration It is possible to provide an upward filtration apparatus in which fresh water A in the tank 4 can be efficiently collected without staying locally in the filtration tank 4.
　図８～図１０は、本発明の液槽内における集液装置の第２の実施形態における集水樋(集液樋)を示す。
　なお、本発明の液槽内における集液装置の第１の実施形態におけるのと同一または類似の部材には、同一の符号を付して図示するに止め、それらについての詳細な説明は省略する。 FIGS. 8 to 10 show a water collecting basin (liquid collecting basin) in a second embodiment of the liquid collecting apparatus in a liquid tank according to the present invention.
The same or similar members as in the first embodiment of the liquid collection device in the liquid tank of the present invention are indicated by the same reference numerals and symbols, and detailed description thereof will be omitted. .
　この集水樋(集液樋)３１は、集液装置の第１の実施形態における集水樋２１の両側板２１ａ、２１ｂ、底板２１ｃ、整流板２１ｄ、フロート２４、２４および排水筒２５と同様の両側板３１ａ、３１ｂ、底板３１ｃ、整流板３１ｄ、フロート３２、３２および排水筒３３を備えている。 The water collecting basin (liquid collecting basin) 31 is the same as the side plates 21a and 21b, the bottom plate 21c, the flow straightening plates 21d, the floats 24 and 24, and the drain cylinder 25 in the first embodiment of the liquid collecting apparatus. The side plates 31a and 31b, the bottom plate 31c, the flow straightening plate 31d, the floats 32 and 32, and the drain cylinder 33 are provided.
　両側板３１ａ、３１ｂには、互いに対向する位置に、同一寸法とした複数の円型の集水口(集液口)３４が設けられている。
　したがって、この集水樋３１は、両側板３１ａ、３１ｂの外側面に作用する清水Ａの液圧は同一となるので、その液圧の差による旋回力は発生することはない。 On both side plates 31a, 31b, a plurality of circular water collection ports (water collection ports) 34 having the same dimensions are provided at positions facing each other.
Therefore, since the hydraulic pressure of the fresh water A acting on the outer side surfaces of the side plates 31a and 31b is the same, the swirling force is not generated due to the difference in the hydraulic pressure.
　排水筒３３の下端部は、下方に向かって漸次縮径させられており、その下端部の内面には、ハブ３５の外周に複数のブレード３６が円周方向に等間隔で突設されたスクリュウ３７が、各ブレード３６の翼端を排水筒３３の下端部内面に固着されるようにして設けられている。
　このスクリュウ３７における各ブレード３６の上面が、集液装置の第１の実施形態における排水筒２５の内面における反らせ面２６ａと同様に、排水筒３３内を流下する清水Ａを螺旋状に案内することにより、その反作用で集液樋３１を垂直軸Ｂに旋回させる力を発生させる反らせ面をなしている。 The lower end portion of the drainage cylinder 33 is gradually reduced in diameter downward, and on the inner surface of the lower end portion, a screw in which a plurality of blades 36 are projected at equal intervals in the circumferential direction on the outer periphery of the hub 35 37 are provided so that the blade end of each blade 36 is fixed to the inner surface of the lower end portion of the drain cylinder 33.
The upper surface of each blade 36 in the screw 37 spirally guides the fresh water A flowing down the drainage cylinder 33 in the same manner as the curved surface 26 a in the inner surface of the drainage cylinder 25 in the first embodiment of the liquid collecting device. Thus, the reaction forms a deflecting surface that generates a force that causes the collecting rod 31 to pivot about the vertical axis B.
　排水筒３３は、第１の実施形態における分岐管２３の上方を向く開口部２３ａに回転可能、かつ上下方向に摺動可能として上方から嵌合され、集水樋３１は分岐管２３の開口部２３ａの中心、すなわち垂直軸Ｂを中心として、旋回可能、かつ昇降可能として支持されている。 The drainage cylinder 33 is rotatably and vertically slidable in the opening 23a facing upward of the branch pipe 23 in the first embodiment and is fitted from above, and the water collecting rod 31 is an opening of the branch pipe 23 It is supported as pivotable and ascendable and descendable about the center of 23 a, that is, the vertical axis B.
　この第２の実施形態においては、スクリュウ３７が、排水筒３３内に設けられ、排液筒３３内を流れる清水Ａを螺旋状に案内することにより、その反作用で集水樋３１を分岐管２３の開口部２３ａを中心として旋回させる螺旋流形成手段３８をなしている。 In the second embodiment, the screw 37 is provided in the drainage cylinder 33, and guides the fresh water A flowing in the drainage cylinder 33 in a spiral shape, so that the water collecting weir 31 is branched by the reaction. The spiral flow forming means 38 is made to pivot about the opening 23a of the.
　したがって、第２の実施形態においては、集水樋３１は、螺旋流形成手段３８のみによって旋回させられるようになっている。
　なお、螺旋流形成手段３８におけるスクリュウ３７の各ブレード３６の捩り方向を、上記第２の実施形態におけるものと逆方向とすることにより、集水樋３１を、上記のものと逆方向に旋回させることができる。 Therefore, in the second embodiment, the water collection weir 31 is pivoted only by the spiral flow forming means 38.
In addition, by making the twisting direction of each blade 36 of the screw 37 in the spiral flow forming means 38 opposite to that in the second embodiment, the water collecting weir 31 is pivoted in the opposite direction to the above. be able to.
　その他の構成は、第１の実施形態におけるのと同様であり、それらについての図示および詳細な説明は省略する。 The other configuration is the same as in the first embodiment, and the illustration and detailed description thereof will be omitted.
　本発明は、上記実施形態のみに限定されるものではなく、特許請求の範囲を逸脱することなく、例えば、次のような幾多の変形した態様での実施が可能である。
（１）図３～図５に示す螺旋流形成手段２６を省略し、すなわち排水筒２５の下端部を、内面に反らせ面２６ａを設けない単純な円筒形、または倒立截頭円錐形とし、集水樋２１における互いに対向する側板２１ａ、２１ｂの外側面に作用する清水Ａの液圧の差のみによって、集水樋２１を旋回させるようにする。
（２）集水樋２１および分岐管２３を、それぞれ１個のみとする。
（３）３個以上の集水樋２１および分岐管２３を並設する。
（４）集水樋２１を、例えば排泥板１４の上端に立設した支柱(図示略)に回転可能として枢着する。
（５）集水樋２１における底板２１ｃの一側端部の下面に排水筒２５を設け、集水樋２１が一側端部を中心として旋回するようにする。
（６）集水樋２１における互いに対向する側板２１ａ、２１ｂの垂直軸Ｂから離れた部分に、開口面積が異なる集水口を設け、その集水口の開口面積の差に基づく両側板２１ａ、２１ｂの外側面に作用する液圧の差によって、集水樋２１が垂直軸Ｂ回りに旋回させられるようにする。 The present invention is not limited only to the above-described embodiment, and can be implemented, for example, in the following many modified modes without departing from the scope of the claims.
(1) The spiral flow forming means 26 shown in FIGS. 3 to 5 is omitted, that is, the lower end portion of the drainage cylinder 25 is formed into a simple cylindrical or inverted truncated cone without providing the inner surface 26a with the inner surface. The water collecting weir 21 is made to turn only by the difference in the hydraulic pressure of the fresh water A acting on the outer side surfaces of the side plates 21a and 21b facing each other in the water weir 21.
(2) Only one collection basin 21 and one branch pipe 23 are provided.
(3) Three or more water collection basins 21 and branch pipes 23 are juxtaposed.
(4) The water collecting basin 21 is pivotably attached, for example, to a support (not shown) erected at the upper end of the sludge removal plate 14.
(5) A drainage cylinder 25 is provided on the lower surface of one end of the bottom plate 21c of the water collecting basin 21 so that the water collecting basin 21 turns around the one side end.
(6) Water collecting ports having different opening areas are provided in portions of the water collecting basin 21 away from the vertical axes B of the side plates 21a and 21b facing each other, and the side plates 21a and 21b are based on the difference in the opening area of the water collecting ports. The difference in the hydraulic pressure acting on the outer surface allows the collecting basin 21 to be pivoted about the vertical axis B.
　上記実施形態は、本発明の液槽内における集水装置を、上向ろ過装置に適用した場合のものであるが、本発明は、これに限られるものではなく、例えば、貯留槽等に貯留した汚水、工場廃液、油、飲料水、その他の液体を集液する集液装置に適用することができる。
　上記実施形態においては、集水する対象が本ろ過材１２を通過して浄化された、ろ過済みの清水Ａであるので、本ろ過槽４、集水装置１５、排水管１６、集水樋２１、集水口２２、排水筒２５等の用語を使用したが、集水する対象が、工場廃液や油その他の水以外の液体の場合には、液槽、集液装置、排液管、集液樋、集液口、排液筒等の用語を使用するのが適切であるので、それらを、上記各用語の後に括弧書きで記載し、かつ特許請求の範囲においては、上位概念の用語を用いた。 Although the said embodiment is a case when the water collection apparatus in the liquid tank of this invention is applied to an upward filtration apparatus, this invention is not limited to this, For example, it stores in a storage tank etc. The present invention can be applied to a collecting device for collecting waste water, industrial waste, oil, drinking water and other liquids.
In the above embodiment, the filtration target is the filtered fresh water A that has been purified by passing through the filter material 12, so the filtration tank 4, the water collection device 15, the drainage pipe 16, and the water collection basin 21. The term “water collection port 22”, “drain tube 25”, etc. is used, but in the case where the target of water collection is a factory waste liquid, oil or other liquid other than water, a liquid tank, a liquid collecting device, a drainage pipe, liquid collection As it is appropriate to use terms such as sputum, collection ports, drainage tubes, etc., they are described in parentheses after each of the above terms, and in the claims, the terms in the broader concept are used. It was.
　Ａ　清水(液体)
　Ｂ　垂直軸
　Ｃ　中心線
　１　上向ろ過槽
　２　垂直隔壁
　３　予備ろ過槽
　３ａ底壁
　４　本ろ過槽(液槽)
　４ａ底壁
　５　流入管
　６　上向管
　７　多孔板
　８　予備ろ過材
　９　排泥管
１０　水平受板
１１　連通孔
１２　本ろ過材
１３　洗浄管
１４　排泥板
１４ａ排泥溝
１５　集水装置(集液装置)
１６　排水管(排液管)
１７　ろ過速度調整槽
１８　ノッチ板
１９　流出管
２０　沈殿槽
２１　集水樋(集液樋)
２１ａ、２１ｂ　側板
２１ｃ底板
２１ｄ整流板
２２　集水口(集液口)
２３　分岐管(排液管)
２３ａ開口部
２４　フロート
２５　排水筒(排液筒)
２６　螺旋流形成手段
２６ａ反らせ面
２７　通気管
３０　切り欠き
３１　集水樋(集液樋)
３１ａ、３１ｂ　側板
３１ｃ底板
３２　フロート
３３　排水筒(排液筒)
３４　集水口(集液口)
３５　ハブ
３６　ブレード
３７　スクリュウ
３８　螺旋流形成手段 A Shimizu (liquid)
B Vertical axis C Center line 1 Upward filtration tank 2 Vertical partition 3 Preliminary filtration tank 3a Bottom wall 4 filtration tank (liquid tank)
4a bottom wall 5 inflow pipe 6 upward pipe 7 porous plate 8 preliminary filtration material 9 sludge pipe 10 horizontal backing plate 11 communication hole 12 main filter material 13 washing pipe 14 sludge pipe 14a drainage groove 15 water collecting device apparatus)
16 Drain pipe (drain pipe)
17 filtration rate adjustment tank 18 notch plate 19 outflow pipe 20 settling tank 21 water collecting basin (collection basin)
21a, 21b side plate 21c bottom plate 21d current plate 22 water collecting port (water collecting port)
23 Branch pipe (drainage pipe)
23a opening 24 float 25 drain cylinder (drain cylinder)
26 Spiral flow forming means 26 a Recurved surface 27 Ventilation pipe 30 Notch 31 Water collecting basin (water collecting basin)
31a, 31b side plate 31c bottom plate 32 float 33 drain cylinder (drain cylinder)
34 Water collection port (water collection port)
35 hub 36 blade 37 screw 38 spiral flow forming means

Claims (6)

  1. 　液槽内における液体を集液する装置において、
    　前記液槽内の液体に、垂直軸回りに回転可能として浮かべられ、かつ前記垂直軸と直交する中心線を挟んで互いに対向する側板のいずれか一方のみにおける前記垂直軸から離れた部分に集液口を設けるか、または前記両側板に開口面積が異なる集液口を設け、前記両側板の外側面に作用する液圧の差によって、前記垂直軸回りに旋回させられるようにした集液樋と、
    　一端が前記集液樋に接続され、かつ他端が前記液槽外に配設され、前記集液樋内に溜まった液体を前記液槽外に排出する排液管
    とを備えることを特徴とする液槽内における集液装置。     In an apparatus for collecting liquid in a liquid tank,
    The liquid in the liquid tank is floated so as to be rotatable about a vertical axis, and collected at a portion apart from the vertical axis in any one of the side plates facing each other across the center line orthogonal to the vertical axis A liquid collecting weir having a mouth or a liquid collecting port having different opening areas in the both side plates, so that it can be pivoted about the vertical axis by a difference in hydraulic pressure acting on the outer side surface of the both side plates ,
    One end is connected to the liquid collecting basin, and the other end is disposed outside the liquid tank, and a liquid discharge pipe is provided for discharging the liquid accumulated in the liquid collecting basin to the outside of the liquid tank. Liquid collection device in the liquid tank.
  2. 　前記集液樋における底板に設けた下方を向く排液筒を、前記液槽内に設けた前記排液管における上方を向く開口部に回転可能として嵌合し、前記集液樋を前記排液管の開口部を中心として旋回可能とした請求項１記載の液槽内における集液装置。 A downward-facing drainage cylinder provided on the bottom plate of the collection basin is rotatably fitted to an upward-facing opening portion of the drainage pipe provided in the liquid tank, and the drainage basin is subjected to the drainage. The liquid collecting apparatus in a liquid tank according to claim 1, wherein the liquid collecting apparatus is rotatable around an opening of the pipe.
  3. 　前記排液筒内に、その中を流下する液体を螺旋状に案内することにより、その反作用で、前記集液樋の旋回を助長させるようにした螺旋流形成手段を設けた請求項２記載の液槽内における集液装置。 The liquid draining tube according to claim 2, further comprising a spiral flow forming unit configured to promote swirling of the liquid collection weir in a reaction by guiding the liquid flowing down in the spiral form in the drainage cylinder. Liquid collection device in the liquid tank.
  4. 　液槽内における液体を集液する装置において、
    　一端が前記液槽内において上方に向かって開口するように配設され、かつ他端が前記液槽外に配設された排液管と、
    　前記液槽内の液体に浮かべられ、外周壁の一部に集液口が設けられ、かつ底板に下方を向く排液筒が設けられ、前記排液筒が前記排液管の一端の開口部に回転可能として嵌合され、前記集液口より流入した前記液槽内の液体を前記排液筒より前記排液管に流出するようにした横長の集液樋と、
    　前記集液樋における排液筒内に設けられ、前記排液筒内を流れる液体を螺旋状に案内することにより、その反作用で前記集液樋を前記排液管の一端の開口部を中心として旋回させる螺旋流形成手段
    とを備えることを特徴とする液槽内における集液装置。     In an apparatus for collecting liquid in a liquid tank,
    A drain pipe disposed at one end so as to open upward in the liquid tank and having the other end disposed outside the liquid tank;
    A liquid discharge port floats on the liquid in the liquid tank, a liquid collection port is provided on a part of the outer peripheral wall, and a bottom plate is provided with a liquid discharge cylinder facing downward, and the liquid discharge cylinder is an opening at one end of the liquid discharge pipe A horizontally long liquid collecting weir which is fitted as a rotatable connector so that the liquid in the liquid tank which has flowed in from the liquid collecting port is made to flow out from the liquid discharge pipe to the liquid discharge pipe;
    The liquid collecting tub is provided in the drainage cylinder in the liquid collecting tub, and the liquid flowing in the drainage cylinder is guided in a spiral shape, and the reaction causes the liquid collecting tub to be centered on the opening of one end of the drainage pipe. And a spiral flow forming means for swirling.
  5. 　前記集液樋を、前記液槽内の液体の液面とともに昇降可能として支持し、かつ前記集液樋における集液口の下縁が前記液槽内の液体の液面より下位の一定範囲を維持するように前記集液樋の浮力を調整するフロートを、前記集液樋に設けた請求項１～４のいずれかに記載の液槽内における集液装置。 The liquid collection basin is supported as vertically movable with the liquid level of the liquid in the liquid tank, and the lower edge of the liquid collection port in the liquid collection basin is a certain range lower than the liquid level of the liquid in the liquid tank. The liquid collection device in a liquid tank according to any one of claims 1 to 4, wherein a float for adjusting the buoyancy of the liquid collection tank so as to maintain it is provided in the liquid collection tank.
  6. 　本ろ過槽の底壁のやや上方に設けた多孔の水平受板の上面に、本ろ過材を重積し、被処理水が前記水平受板と本ろ過材とを上向きに通過することにより、ろ過されるようにした上向ろ過装置において、前記本ろ過槽を液槽とし、かつ前記本ろ過槽に、請求項１～５のいずれかに記載の液槽内における集液装置を設けたことを特徴とする上向ろ過装置。 This filtration material is stacked on the upper surface of the porous horizontal support plate provided slightly above the bottom wall of the filtration tank, and the water to be treated passes upward through the horizontal support plate and the filtration material. In the upward filtration apparatus configured to be filtered, the main filtration tank is a liquid tank, and the liquid filtration apparatus in the liquid tank according to any one of claims 1 to 5 is provided in the main filtration tank. Upward filtration device characterized by.
PCT/JP2017/025438 2017-07-12 2017-07-12 Liquid collection device in liquid tank and upflow filtration device provided with same WO2019012633A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109701345A (en) * 2019-01-24 2019-05-03 嘉兴斯迈欧五金科技有限公司 A kind of cooking fume-collecting purification device
US11683978B2 (en) 2019-07-11 2023-06-20 Samsung Display Co., Ltd. Organic molecules for use in optoelectronic devices

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Publication number Priority date Publication date Assignee Title
US3025966A (en) * 1959-07-29 1962-03-20 Wayne A Kivell Liquid clarifying apparatus
JPS50159157A (en) * 1974-06-13 1975-12-23
JPS548610Y2 (en) * 1973-03-17 1979-04-20
JPH0483579A (en) * 1990-07-25 1992-03-17 Mitsuhiro Fujiwara Rotary driving type scum removing apparatus
JP2002001324A (en) * 2000-06-23 2002-01-08 Sankyo Reijakku Kk Device for sampling surface layer liquid
JP2005095714A (en) * 2003-09-22 2005-04-14 Okada Sangyo Kk Upward filtration device

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Publication number Priority date Publication date Assignee Title
US3025966A (en) * 1959-07-29 1962-03-20 Wayne A Kivell Liquid clarifying apparatus
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JPH0483579A (en) * 1990-07-25 1992-03-17 Mitsuhiro Fujiwara Rotary driving type scum removing apparatus
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JP2005095714A (en) * 2003-09-22 2005-04-14 Okada Sangyo Kk Upward filtration device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109701345A (en) * 2019-01-24 2019-05-03 嘉兴斯迈欧五金科技有限公司 A kind of cooking fume-collecting purification device
US11683978B2 (en) 2019-07-11 2023-06-20 Samsung Display Co., Ltd. Organic molecules for use in optoelectronic devices

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