JP2015104711A - Water quality improving apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water quality improving apparatus that can improve the water quality of water to be treated by removing foreign matter, such as fine dust, contained in the water to be treated and controlling dissolved oxygen in the water to be treated.SOLUTION: A water quality improving apparatus 100 comprises: a cyclone separation part 20 that removes and separates foreign matter contained in water to be treated; a first introduction pipe 10 that leads the water to be treated into the inside of the apparatus; an upward mobilization part 30c that makes the water to be treated having led from the introduction pipe 10 flow upward along an inner wall surface of the apparatus; a second introduction pipe 40 that leads the water to be treated having flowed upward into the inside of the cyclone separation part 20; a discharge pipe 50 that leads an upward flow generated by rotational mobilization of the water to be treated to the outside of the apparatus as treated water; a foreign matter discharge pipe 60 that discharges separated foreign matter to the outside of the apparatus; and a gas supply part 70 that supplies a predetermined gas to the water to be treated before being led into the first introduction pipe 10. An inner wall part of the first introduction pipe 10 and an inner wall part of the second introduction pipe 40 are formed with collision parts that generate a rotational flow by colliding with the water to be treated.

Description

  The present invention removes foreign matters such as fine dust contained in the for-treatment water and adjusts the oxygen concentration (dissolved oxygen amount) contained in the for-treatment water to improve the quality of the for-treatment water. Quality device.

  2. Description of the Related Art Conventionally, a cyclone type water treatment apparatus that separates and removes foreign matters contained in water to be treated such as domestic wastewater and industrial wastewater due to the difference in specific gravity is known.

  In a general cyclone type water treatment apparatus, foreign substances are gathered and separated in the vicinity of the inner peripheral surface by centrifugal force generated by swirling and flowing the water to be processed along the inner peripheral surface of the processing container. For the purpose of improving the purification performance of the fluid to be treated, for example, Patent Document 1 discloses a cylindrical shape formed between the inner peripheral surface of the cyclonic processing container and the outer peripheral surface of the post-purification processed fluid discharge pipe. By providing a separation cylinder with a through-hole that divides the fluid to be treated into the inner peripheral side and the outer peripheral side and that connects the inner peripheral side and the outer peripheral side in the fluid flow path of There is disclosed a foreign particle separation apparatus capable of greatly improving the removal efficiency from a fluid to be treated even if the foreign particles are small foreign particles or foreign particles having a small specific gravity difference from the water to be treated.

JP 2012-143722 A

  However, in the conventional technology, even if the purification performance of the water to be treated such as the removal of minute foreign particles can be improved, for example, drastic adjustment of the amount of oxygen contained in the water to be treated such as the amount of dissolved oxygen is drastic. Dissatisfaction remained from the viewpoint of water quality improvement.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to remove foreign matters such as fine dust contained in the water to be treated and to adjust the amount of dissolved oxygen in the water to be treated. It is an object of the present invention to provide a water quality reformer capable of modifying the quality of treated water.

  In order to solve the above-described problem, a water quality reformer according to the first invention of the present application includes a cyclone separation unit that separates and removes foreign substances contained in water to be treated by centrifugal force generated by swirling flow of the water to be treated. The first treatment pipe connected to the lower part of the apparatus and guiding the treated water into the apparatus, and the treatment object formed between the inner wall of the apparatus and the cyclone separator and guided from the first introduction pipe An ascending flow part for ascending and flowing water along the inner wall surface of the apparatus; a second introduction pipe connected to the upper part of the cyclone separation part for guiding the treated water that has flowed up to the inside of the cyclone separation part; and the cyclone separation A discharge pipe that is inserted into the section and guides the upward flow generated with the swirling flow of the water to be treated to the outside of the apparatus as treated water, and a foreign substance discharge pipe that discharges the foreign matter separated in the cyclone separation section to the outside of the apparatus. A gas supply part for supplying a predetermined gas to the water to be treated before being guided to the first introduction pipe, and an inner wall part of the first introduction pipe and an inner wall part of the second introduction pipe Is characterized in that a collision part is formed which generates a rotating flow when the water to be treated collides.

  In the water quality reforming apparatus according to the first aspect of the present invention, the first introduction pipe is formed between the first introduction pipe connected to the lower part of the apparatus and guiding the water to be treated to the inside of the apparatus, the inner wall of the apparatus, and the cyclone separator. An ascending fluid part for ascending and flowing the water to be treated guided from the pipe along the inner wall surface of the apparatus, and a second introduction pipe connected to the upper part of the cyclone separation part and guiding the treated water that has risen and fluidized into the cyclone separation part. Is provided. As a result, the water to be treated guided from the first introduction pipe flows upward along the inner wall surface of the apparatus in the upward flow portion, and is guided to the cyclone separation portion in a state where a sufficient centrifugal force is applied. Become. And since the centrifugal force accompanying the downward flow along the inner wall surface of the separation part is further given to the foreign matter contained in the water to be treated guided through the second introduction pipe in the cyclone separation part, the first According to the water quality reforming apparatus according to the invention, foreign substances contained in the for-treatment water can be efficiently collected in the vicinity of the inner wall surface of the separation unit according to the specific gravity difference. Further, the first introduction pipe and the second introduction pipe according to the first invention are formed with collision portions that generate a rotating flow when the water to be treated collides. In the collision part, the mixing of the predetermined gas supplied via the gas supply part can be promoted by the rotating flow generated with the collision of the water to be treated.

  Further, according to a second invention of the present application, in the first invention, the inner wall portion of the first introduction tube and the inner wall portion of the second introduction tube are formed in a substantially cylindrical shape, and the collision portion is a cylindrical inner peripheral surface. And the corrugated collision wall formed along the flow direction of the water to be treated.

  In the water quality reforming apparatus according to the second aspect of the invention, the inner wall portion of the first introduction pipe and the inner wall portion of the second introduction pipe are formed in a substantially cylindrical shape, and the collision portion is treated water on the inner circumferential surface of the cylinder. The corrugated collision wall is formed along the flow direction. As a result, the inner circumferential surface of the cylinder, that is, the diameter of the channel cross section of the water to be treated is continuously increased and reduced, so that in the region where the diameter of the channel cross section decreases from the reduced diameter The flow rate of the water to be treated can be increased (hereinafter, the structure is referred to as a continuous expansion / contraction tube structure in the present application), and a predetermined gas supplied through the gas supply unit by the rotating flow generated in the collision wall Can be mixed effectively.

  Further, according to a third invention of the present application, in the second invention, the angle θ formed by the cylindrical inner peripheral surface and the collision wall is 0 degree or more and 180 degrees or less, and the fourth invention of the present application is the third invention In the present invention, the angle θ formed by the inner circumferential surface of the cylinder and the collision wall is characterized by being 10 degrees or more and 60 degrees or less.

  In the water quality reformer according to the third aspect of the invention, the angle θ formed by the cylindrical inner peripheral surface and the collision wall is not less than 0 degrees and not more than 180 degrees. In the water quality reformer according to the fourth aspect of the invention, the angle θ By setting the angle to 10 degrees or more and 60 degrees or less, the flow rate of the water to be treated can be increased, and the predetermined gas supplied through the gas supply section can be effectively mixed in the collision wall.

  Furthermore, in the fifth invention of the present application, in any one of the second to fourth inventions, the topmost part of the crest formed by the collision wall is formed from the cylindrical inner peripheral surface side to the cylindrical outer peripheral surface side. It is characterized by having.

  In the water quality reforming apparatus according to the fifth aspect of the present invention, the first introduction pipe and the second introduction are formed by forming the topmost part of the crest formed by the collision wall from the cylindrical inner peripheral surface side to the cylindrical outer peripheral surface side. The cylindrical inner peripheral surface of the pipe, that is, the flow path cross-sectional area of the water to be treated can be effectively used up to the maximum diameter.

  According to a sixth invention of the present application, in the first invention, the inner wall portion of the first introduction tube and the inner wall portion of the second introduction tube are formed in a substantially cylindrical shape, and the collision portion is a cylindrical inner peripheral surface. Has a collision wall formed by expanding the diameter toward the outer peripheral surface of the cylinder.

  In the water quality reformer according to the sixth aspect of the invention, the inner wall portion of the first introduction pipe and the inner wall portion of the second introduction pipe are formed in a substantially cylindrical shape, and the collision inner portion has a cylindrical inner peripheral surface. It has a collision wall formed by expanding the diameter to the side. Thereby, in the cylindrical inner peripheral surface, that is, in the region where the diameter of the cross section of the flow path of the water to be treated is directed toward the diameter expansion, the flow rate of the water to be treated can be increased and the gas supply unit is caused by the rotating flow generated in the collision wall. The predetermined gas supplied via can be mixed effectively.

  Further, according to a seventh aspect of the present invention, in any one of the first to sixth aspects, the cyclone separating portion includes a plurality of inverted conical portions whose inner diameters are reduced in the vertical direction as the cyclone separating portion is in a lower position. It is characterized by having.

  In the water quality reformer according to the seventh aspect of the present invention, the cyclone separator is configured such that a plurality of inverted conical portions whose inner diameter is reduced as the position is lowered are continuously provided in the vertical direction, so that a single separator is provided. Compared to the above configuration, it is possible to provide a higher foreign matter separation ability.

  The eighth invention of the present application is any one of the first to seventh inventions, wherein the predetermined gas is hydrogen, air, oxygen, ozone, inert gas, general industrial gas, or a combination thereof. It is characterized by being.

  In the water quality reformer according to the eighth aspect of the invention, the predetermined gas is hydrogen, air, oxygen, ozone, inert gas, general industrial gas, or a combination thereof, so that the amount of dissolved oxygen in the water to be treated is reduced. Can be adjusted.

  ADVANTAGE OF THE INVENTION According to this invention, while removing foreign matters, such as a fine dust contained in to-be-processed water, adjusting the amount of dissolved oxygen in to-be-processed water, the water quality improvement which can improve the water quality of to-be-processed water. A quality device can be provided.

1 is a schematic cross-sectional view for explaining the configuration of a water quality reformer 100. FIG. It is a schematic sectional drawing explaining the structure of the collision part 10a. It is a schematic block diagram explaining the experimental apparatus provided with the water quality reformer. It is a graph showing the result of having confirmed visually the white turbidity generation frequency (microbubble generation frequency) with respect to a setting angle. The result of measuring the dissolved oxygen amount of tap water treated by the water quality reformer 100 in which the angle formed between the cylindrical inner peripheral surface 10b and the collision wall 10d is set to 0 degrees, 15 degrees, and 100 degrees is shown with a dissolved oxygen meter. It is a graph. It is a schematic sectional drawing explaining the other form of a collision part. It is a schematic sectional drawing explaining the other form of a collision part.

  The water quality reforming apparatus according to the embodiment of the present invention is assumed to be installed in places such as domestic wastewater treatment facilities, industrial wastewater treatment facilities, lakes, rivers, farming environments such as rice farming, and aquaculture environments for fishery resources. A device capable of separating and removing foreign matters such as fine dust and adjusting the amount of dissolved oxygen from waste water or waste water (hereinafter referred to as treated water) pumped up by suction means such as a pump. It is. Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following description and can be appropriately changed without departing from the gist of the present invention.

  Fig.1 (a) is a schematic sectional drawing explaining the structure of the water quality reformer 100 which concerns on embodiment of this invention, FIG.1 (b) is a cross section in the bb 'line of Fig.1 (a). FIG.

  As shown in FIG. 1A, a water quality reformer 100 includes a cyclone separator 20 that separates and removes foreign substances contained in the water to be treated by centrifugal force generated by the swirling flow of the water to be treated, and a lower part of the device. A first introduction pipe 10 that is connected and guides the water to be treated to the inside of the apparatus main body 30, and is formed between the inner wall of the apparatus and the cyclone separator, and the water to be treated guided from the first introduction pipe 10 is supplied to the apparatus. An ascending fluid part 30c that ascends and flows along the inner wall surface, connected to the upper part of the cyclone separating part 20, and connected to the cyclone separating part 20 with a second introduction pipe 40 that guides the treated water that has risen and fluidized into the cyclone separating part 20 A discharge pipe 50 that is inserted and guides the upward flow generated with the swirling flow of the water to be treated to the outside of the apparatus as treated water, a foreign substance discharge pipe 60 that discharges the foreign substances separated in the cyclone separation unit to the outside of the apparatus, and a first Guidance And a gas supply unit 70 for supplying a predetermined gas to the water to be treated before being introduced into the tube 10.

  The apparatus main body 30 of the water quality reformer 100 is made of, for example, a metal pipe such as a stainless steel pipe, a carbon steel pipe, or a galvanized steel pipe, a synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, or ABS resin, or a ceramic in a substantially cylindrical shape. The inside is a hollow structure. An outer peripheral surface opening 30 d for allowing the first introduction pipe 10 to be inserted into the apparatus main body 30 is formed below the outer peripheral surface 30 b of the apparatus main body 30. The top surface portion 30e is formed with a top surface opening 30f for allowing the discharge pipe 50 to be inserted into the upper part of the cyclone separation portion 20, and the foreign matter discharge tube 60 is disposed on the bottom surface portion 30g. 20 is formed with a bottom opening 30h that can be inserted through the lower portion. Inside the apparatus main body 30, the water to be treated is formed between the inner peripheral surface 30 a that is the inner wall of the apparatus and the cyclone separating section 20, and the treated water guided from the first introduction pipe 10 is along the inner peripheral surface 30 a of the apparatus. An ascending fluid portion 30c for ascending fluid is formed.

  The first introduction pipe 10 is formed, for example, by molding a metal pipe such as a stainless steel pipe, a carbon steel pipe, a galvanized steel pipe, a synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, or ABS resin, or a ceramic into a substantially cylindrical shape. The apparatus main body 30 is connected to the apparatus main body 30 via an outer peripheral surface opening 30 d below the outer peripheral surface 30 b of the apparatus main body 30. FIG. 1B is a view for explaining a connection form of the first introduction pipe 10 to the apparatus main body 30, and the first introduction pipe 10 is in a tangential direction of the inner peripheral surface 30 a of the apparatus main body 30. The treated water led from the flow direction indicated by the arrow l in the figure through the first introduction pipe 10 has a higher flow velocity due to the continuous expansion / contraction pipe structure described later. In the ascending flow part 30c, the ascending flow is repeated in the direction of the arrow while reaching the upper part of the apparatus main body part 30, and the cyclone separating part 20 is passed through the second introduction pipe 40 in a state where a sufficient centrifugal force is applied. Led.

  The cyclone separator 20 is configured by molding a metal pipe such as a stainless steel pipe, a carbon steel pipe, a galvanized steel pipe, a synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, or ABS resin, or a ceramic into a substantially cylindrical shape. The swivel center of the water to be swirled inside is arranged so as to coincide with the axis of the apparatus main body 30. The cyclone separator 20 according to this embodiment includes a first separator 21 connected to the second introduction pipe 40 and the discharge pipe 50, a second separator 22, and a third separation connected to the foreign matter discharge pipe 60. Three types of separation parts with the part 23 are configured to be connected in tandem from the upper side to the lower side of the apparatus main body part 30. Each of the 1st separation part 21, the 2nd separation part 22, and the 3rd separation part 23 is constituted so that the upper part may be a substantially cylindrical shape, and it may become an inverted cone shape in which an inner diameter contracts, so that it becomes a lower position. .

  The treated water led to the first separation unit 21 of the cyclone separation unit 20 through the second introduction pipe 40 descends in the order of the first separation unit 21, the second separation unit 22, and the third separation unit 23. Is repeated to collide with the bottom surface of the third separation portion 23. The foreign substances contained in the water to be treated are collected on the inner wall surface of the separation part according to the specific gravity difference in accordance with the descending flow in the first separation part 21, the second separation part 22, and the third separation part 23. To be separated. The treated water from which the foreign matter has been separated is discharged to the outside of the apparatus as treated water through the discharge pipe 50 connected to the first separation unit 21 by the upward flow generated by the collision at the bottom surface of the third separation unit 23. The

  The second introduction pipe 40 is formed by, for example, molding a metal pipe such as a stainless steel pipe, a carbon steel pipe, a galvanized steel pipe, a synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, or ABS resin, or a ceramic into a substantially cylindrical shape. It is comprised and is connected with the cyclone separation part 20 through the opening part 21a formed in the 1st separation part 21 outer peripheral surface of the cyclone separation part 20. As shown in FIG. Similarly to the first introduction pipe 10, the second introduction pipe 40 also has a continuous expansion / contraction pipe structure, and the treated water that has reached the upper part of the apparatus main body 30 while repeating the ascending flow in the ascending flow part 30c. It is configured such that it can be guided to the first separation part 21 of the cyclone separation part 20 while increasing the flow velocity.

  The discharge pipe 50 is formed by, for example, molding a metal pipe such as a stainless steel pipe, a carbon steel pipe, a galvanized steel pipe, a synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, or ABS resin, or a ceramic into a substantially cylindrical shape. The upper part (first separation part 21) of the cyclone separation part 20 is inserted through the top surface opening part 30 f of the apparatus main body part 30. The discharge pipe 50 discharges the treated water from which foreign substances have been removed to the outside of the apparatus as treated water.

  The foreign matter discharge pipe 60 is formed, for example, by molding a metal pipe such as a stainless steel pipe, a carbon steel pipe, a galvanized steel pipe, a synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, or ABS resin, or a ceramic into a substantially cylindrical shape. It is inserted through the bottom opening 30h of the apparatus main body 30 into the lower part of the cyclone separation part 20 (third separation part 23). The foreign matter discharge pipe 60 discharges the foreign matter collected on the inner wall surface of the cyclone separating portion to the outside of the apparatus.

  The gas supply unit 70 sends the gas to a supply unit that generates and supplies a predetermined gas such as a compressor and a cylinder (not shown) and the water to be treated before being guided to the first introduction pipe 10. And a delivery unit such as a pump. In addition, in FIG. 1, although the gas supply part 70 was illustrated by the single structure, when the gas to supply is multiple types, you may make it the structure which provided the several gas supply part in the flow path of to-be-processed water. .

  Next, the collision part (continuous expansion / contraction pipe structure) formed in the inner wall part of the 1st introduction pipe 10 and the 2nd introduction pipe 40 is demonstrated. FIG. 2 is a schematic cross-sectional view illustrating the configuration of the collision unit according to the present embodiment. In addition, since the collision part formed in the 1st introduction pipe 10 and the 2nd introduction pipe 40 can be set as the same structure, description here is formed in the inner wall part of the 1st introduction pipe 10. The configuration of the collision unit will be described.

  As described above, the first introduction tube 10 is formed of a substantially cylindrical metal tube or the like, and the cylindrical inner peripheral surface 10b as an inner wall portion inside the tube and the cylindrical outer peripheral surface 10c as an outer wall portion constituting the outer shape of the tube. The collision part 10a in this embodiment has a corrugated collision wall 10d formed along the flow direction of the water to be treated indicated by an arrow 1 in the figure on the cylindrical inner peripheral surface 10b. The adjacent collision walls 10d form either a peak or a valley, and the peak 10e of the peak is formed from the cylindrical inner peripheral surface 10b side to the cylindrical outer peripheral surface 10c side, The valley bottom 10f is formed on the cylindrical inner peripheral surface 10b. As described above, the cylindrical inner peripheral surface 10b of the first introduction pipe 10, that is, the diameter of the cross section of the flow path of the water to be treated has a continuous expansion / contraction pipe structure that continuously expands and contracts. In the region where the cross-sectional diameter is from the reduced diameter to the enlarged diameter, the flow rate of the water to be treated can be increased. In addition, the generation of the rotational flow in the collision wall 10d causes a speed difference in the flow velocity between the central flow that flows near the center of the flow path cross section and the ambient flow that flows near the cylindrical inner peripheral surface. When a velocity difference occurs inside the fluid flowing in a certain direction, a decompression portion based on Bernoulli's theorem occurs at a location where the flow velocity is high. Such a pressure reduction effect can be expected to obtain a higher purifying ability due to the friction, separation, and adsorption action of the microbubbles due to the cavitation effect that precipitates the gas dissolved in the water to be treated as microbubbles. Microbubbles mean bubbles including concepts such as microbubbles having a diameter of 10 μm to several tens of μm, micronano bubbles having a diameter of several hundred nm to 10 μm, and nanobubbles having a diameter of several hundred nm or less.

  Next, optimization of the angle formed by the cylindrical inner peripheral surface 10b and the collision wall 10d will be described. In order to optimize the angle formed by the cylindrical inner peripheral surface 10b and the collision wall 10d, the experimental apparatus shown in FIG. 3 was constructed and the following experiment was performed. In this experiment, the water quality reformer 100 according to the present embodiment is connected to the water tank 300 via the pump 200, and a gas supply unit 70 that feeds air as a predetermined gas between the water tank 300 and the pump 200. A gas supply unit 70 for feeding hydrogen as a predetermined gas is disposed between the pump 200 and the water quality reformer 100.

  And as the to-be-treated water, the tap water collected from the water supply was used, and the water stored in the water storage tank 300 for about 30 minutes was used in order to stabilize the amount of dissolved oxygen contained. As the water quality reformer 100, an apparatus in which the angle formed between the cylindrical inner peripheral surface 10b and the collision wall 10d is set to 0 degree, 10 degrees, 20 degrees, 40 degrees, 60 degrees, 100 degrees, and 180 degrees is used. Then, the following experiment was performed on the treated water 400 treated by the water quality reformer 100.

  FIG. 4 is a graph showing the result of visually confirming the number of white turbidity occurrences (microbubble generation frequency) with respect to the set angle.

  As shown in FIG. 4, white turbidity occurred even at the set angles of 0 ° and 180 ° for about one out of five experiments. In particular, the occurrence of white turbidity was significant at a set angle of 10 degrees to 60 degrees.

  FIG. 5 shows tap water treated by the water quality reformer 100 in which the angle formed by the cylindrical inner peripheral surface 10b and the collision wall 10d is set to 0 degrees (dotted line), 15 degrees (solid line), and 100 degrees (dashed line). It is the graph which showed the result of having measured the amount of dissolved oxygen with the dissolved oxygen meter, and Table 1 summarizes the obtained result in a table | surface. In addition, the measurement of the amount of dissolved oxygen first investigated the time when the amount of oxygen changed relatively large, and measured the amount of dissolved oxygen twice at that time, and calculated the average value.

  As shown in FIG. 5 and Table 1, the amount of dissolved oxygen was most improved when the set angle was 15 degrees. This result corresponds to the result of the white turbidity visibility test shown in FIG. 4, and the angle formed between the cylindrical inner peripheral surface 10b and the collision wall 10d is 0 degree or more and 180 degrees or less, preferably 10 degrees or more. It was confirmed that the amount of dissolved oxygen in the water to be treated can be improved by setting it to 60 degrees or less.

  Finally, Table 2 shows the results of treating the polishing waste liquid of the iron-based rolled plate as the water to be treated using the water quality reformer 100 according to the present embodiment.

  In the table, the waste water stock solution (mg / l) represents the amount of suspended solids contained in the polishing waste solution stock solution before treatment, and the tube diameter changing nozzle (mg / l) has a cylindrical inner peripheral surface 10b and a collision wall 10d. It represents the amount of suspended solids contained in the treated water after being treated by the water quality reformer 100 having the first introduction pipe 10 and the second introduction pipe 40 set at an angle of 12 degrees. In the straight nozzle (mg / l), the angle formed between the cylindrical inner peripheral surface 10b and the collision wall 10d is 0 degrees, that is, the diameters of the first introduction pipe 10 and the second introduction pipe 40 are not changed. It represents the amount of suspended solids contained in the treated water after being treated by the water quality reformer 100 as a straight pipe.

  In sample 1, the amount of suspended solids in the waste water stock solution was 1400 mg / l, whereas when the tube diameter change nozzle was used, the amount of suspended solids decreased to 12 mg / l. In sample 2, the amount of suspended solids in the waste water stock solution was 36 mg / l, whereas when the tube diameter change nozzle was used, the amount of suspended solids decreased to 8 mg / l. Thus, according to the water quality reformer 100 according to the present embodiment, it was confirmed that foreign substances such as fine dust contained in the water to be treated can be effectively separated and removed.

  The water quality reformer 100 equipped with a straight nozzle also showed a high foreign matter separation ability in both the sample 1 (24 mg / l) and sample 2 (16 mg / l) samples. This is a result indicating that the cyclone separation unit 20 itself provided in the water quality reformer 100 has a high foreign matter separation ability.

  In the description of the present embodiment, the adjacent collision walls 10d of the collision portion 10a formed in the first introduction pipe 10 form either a peak portion or a valley portion, and the topmost portion 10e of the peak portion is a cylinder. Although the configuration has been described in which the valley bottom portion 10f of the valley is formed on the cylindrical inner peripheral surface 10b while being formed from the inner peripheral surface 10b side to the cylindrical outer peripheral surface 10c side, the present invention is limited to this. It is not something. For example, like the collision part 10a 'which is an example of the other form shown to Fig.6 (a), top part 10e' of the peak part which adjacent collision wall 10d 'forms is from cylindrical outer peripheral surface 10c' side. While being formed toward the cylindrical inner peripheral surface 10b ′ side, the valley bottom portion 10f ′ of the valley may be formed on the cylindrical inner peripheral surface 10b ′. Further, like the collision part 10a '' which is an example of another form shown in FIG. 6B, the collision wall 10d is projected from the cylindrical inner peripheral surface 10b '' side to the cylindrical outer peripheral surface 10c '' side. '' May be formed in a U-shape. Further, as shown in FIG. 7, the collision part 11a may have a collision wall 11d formed by expanding the cylindrical inner peripheral surface 11b toward the cylindrical outer peripheral surface 11c. In this case, since the diameter of the cylindrical inner peripheral surface 11b, that is, the diameter of the cross section of the flow path of the water to be treated is a single expansion / contraction tube structure that expands to the diameter indicated by the cylindrical inner peripheral surface 11b ′, Although it is slightly larger than that of the continuous expansion / contraction tube structure, it can exhibit substantially the same performance as the continuous expansion / contraction tube structure.

  In the description of the present embodiment, the predetermined gas supplied from the gas supply unit 70 has been described as air, hydrogen, or a combination thereof, but the present invention is not limited to this. For example, when the amount of dissolved oxygen in the water to be treated is remarkably low, oxygen may be directly supplied via the gas supply unit 70, or ozone having a strong oxidizing ability may be supplied via the gas supply unit 70. It is also possible to obtain effects such as deodorization, decolorization, and sterilization by oxidizing and decomposing foreign matters contained in the water to be treated. In addition to the above gases, for example, inert gases such as rare gas element gases such as helium, neon, and argon, or nitrogen gas, and general industrial gases such as carbon dioxide, carbon monoxide, methane, acetylene, ammonia, etc. It is applicable to the present invention. For example, when nitrogen is used as a predetermined gas, the amount of dissolved oxygen can be substantially reduced by substituting oxygen contained in the water to be treated with nitrogen, thereby suppressing the occurrence of rust in the metal tube. It is possible.

  As described above, according to the water quality reforming apparatus according to the present invention, foreign matter such as fine dust contained in the water to be treated is removed and the amount of dissolved oxygen in the water to be treated is adjusted, thereby Water quality can be improved.

10 1st introduction pipe 10a, 10a ', 10a''Colliding part 10b, 10b', 10b '' Cylindrical inner peripheral surface 10c, 10c ', 10c''Cylindrical outer peripheral surface 10d, 10d', 10d '' Colliding wall 10e , 10e ′ Mountain top portion 10f, 10f ′ Valley bottom portion 11a Colliding portion 11b, 11b ′ Cylindrical inner peripheral surface 11c Cylindrical outer peripheral surface 11d Colliding wall 20 Cyclone separation portion 21 First separation portion 21a Opening portion 22 Second separation portion 23 Third separation Part 30 Device body part 30a Inner peripheral surface 30b Outer peripheral surface 30c Ascending flow part 30d Outer peripheral surface opening 30e Top surface part 30f Top surface opening part 30g Bottom surface part 30h Bottom surface opening part 40 Second introduction pipe 50 Discharge pipe 60 Foreign matter discharge pipe 70 , 70 'Gas supply part

Claims (8)

A cyclone separation unit that separates and removes foreign substances contained in the water to be treated by centrifugal force generated by swirling flow of the water to be treated;
A first introduction pipe connected to the lower part of the apparatus and guiding the treated water into the apparatus;
An ascending fluid part that is formed between the inner wall of the apparatus and the cyclone separating part, and that causes the treated water guided from the first introduction pipe to ascend and flow along the inner wall surface of the apparatus;
A second introduction pipe connected to the upper part of the cyclone separator and guiding the treated water that has flowed upward into the cyclone separator;
A discharge pipe that is inserted into the cyclone separator and guides the upward flow generated with the swirling flow of the water to be treated to the outside of the apparatus as treated water;
A foreign matter discharge pipe for discharging the foreign matter separated in the cyclone separation unit to the outside of the apparatus;
A gas supply unit that supplies a predetermined gas to the water to be treated before being guided to the first introduction pipe,
The water quality is characterized in that an inner wall portion of the first introduction pipe and an inner wall portion of the second introduction pipe are formed with a collision portion that generates a rotating flow when the water to be treated collides. Reformer. The inner wall portion of the first introduction tube and the inner wall portion of the second introduction tube are formed in a substantially cylindrical shape,
2. The water quality reformer according to claim 1, wherein the collision portion has a corrugated collision wall formed along a flow direction of the water to be treated on an inner circumferential surface of the cylinder. The water quality reformer according to claim 2, wherein an angle θ formed by the cylindrical inner peripheral surface and the collision wall is not less than 0 degrees and not more than 180 degrees. The water quality reformer according to claim 3, wherein an angle θ formed by the cylindrical inner peripheral surface and the collision wall is 10 degrees or more and 60 degrees or less. The water quality reformer according to any one of claims 2 to 4, wherein an uppermost portion of the peak portion formed by the collision wall is formed from a cylindrical inner peripheral surface side to a cylindrical outer peripheral surface side. . The inner wall portion of the first introduction tube and the inner wall portion of the second introduction tube are formed in a substantially cylindrical shape,
2. The water quality reformer according to claim 1, wherein the collision portion includes a collision wall formed by expanding a cylinder inner peripheral surface toward the cylinder outer peripheral surface. The water quality according to any one of claims 1 to 6, wherein the cyclone separating portion includes a plurality of inverted conical portions whose inner diameter is reduced in a lower position in a vertical direction. Reformer. The water quality improvement according to any one of claims 1 to 7, wherein the predetermined gas is hydrogen, air, oxygen, ozone, inert gas, general industrial gas, or a combination thereof. apparatus.