JP2017192931A - Aerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerator capable of efficiently generating fine bubbles in an objective water tank or water region, further capable of generating magnetized water and easily and economically performing the aeration of stored water and the generation of a magnetized water flow.SOLUTION: Provided is an aerator comprising: a running water pump 1 installed in a water storage W; a gas suction pipe 4 connected to the water passing pipe 3 of the running water pump 1 and sucking the air; and an aeration water jet nozzle 8 fitted to the tip of the water passing pipe 3. A water suction part 2 sucking water from the outside of the aeration water jet nozzle 8 to the inside thereof is provided, a revolving flow is generated at the inside of the aeration water jet nozzle 8, further, fine bubbles are generated by a cavitation effect by a pressure reduction action generated by the generated revolving flow and a venturi effect pressure-releasing the water flow in which the air is pressure-dissolved by a pressure reduction means, and, while applying a magnetic field, a magnetized fine bubble-containing water flow AW is discharged.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an aeration apparatus having generation of a water flow, and in particular, fine bubbles (micro / nano bubbles) are efficiently generated and stirred in polluted water such as lakes and marshes, purifying the same, and applying magnetism to the supplied water. The present invention relates to an aeration apparatus for producing fine bubble magnetized water useful for fish storage.

  Conventionally, as a purification method of polluted water such as rivers and lakes, a water purification treatment called a catalytic oxidation method or a submerged filter bed method is known. In these water purification treatments, the oxidative degradation action by bacteria contributes greatly to purification, which is called the biological aeration method. In this water purification treatment, a honeycomb tube, nylon strip, plastic molded filter material, charcoal, or granular filter media such as activated carbon, ceramic, sand, etc. are filled into an aeration tank. This removes pollutant (SS) and organic matter. Bacteria that have grown naturally in the raw water gradually propagate on the surface of the filter medium, and a film called a biofilm is formed, thereby promoting the effect of removing filth.

  In recent years, water with a high concentration of fine bubbles has been used in various fields such as water purification and washing of rivers, lakes, and the like, biological activity of organisms, promotion of metabolism, and sterilization. However, in the conventional fine bubble generator, the power energy of the electric pump or the like becomes excessive for the generation of bubbles. In addition, there is a problem that devices and parts such as pipes and hoses are necessary and complicated and expensive.

  In addition, aeration apparatuses that introduce a gas such as air into a liquid are widely used for the purpose of activating live fish tanks, sewage tanks, lakes, and the like. However, when the water tank is small, that is, when the aeration water area is extremely small, stirring in the water tank is performed to some extent only with the aeration apparatus, but if the aeration water area becomes too large, stirring cannot be performed sufficiently. There is no water flow. Therefore, a water tank such as a ginger that is currently in practical use is separately provided with a water flow generator for circulating and pumping liquid in the water tank in addition to an aeration apparatus for supplying oxygen.

  In addition, for the purpose of purifying organic industrial waste and sewage treatment, an activated sludge method is known as a microbial treatment method that has been widely used worldwide since ancient times. In practice, however, most (95% or more) activated sludge wastewater treatment equipment has not performed well. Since activated sludge is a mixed culture system composed of various microorganisms constituting the activated sludge, it has too many problems in its equipment and management technology.

  These include the reactor used in the treatment process, the control of BOD (biochemical oxygen demand) load, the ratio of microorganisms to nutrient sources, the maintenance of MLSS (mixed suspended matter in the aeration tank), the average of the MLSS in the aeration tank Selection of residence time and construction cost of wastewater treatment plant are high and it is difficult to reduce them.

  In other words, the conventional microbubble generator used as a purification device for microbubble tanks and lakes circulates while sucking liquid with a pump, so it requires a pump with a high head and a power supply for driving the pump. Therefore, both the initial cost and the running cost are expensive, and a connecting pipe or the like is required.

  For example, in aquaculture ponds of shrimp and other aquatic products, the stored water is immediately contaminated by feces and the like, so it was necessary to aerate the stored water in a short time to maintain a highly transparent water quality. As the water purification treatment of the stored water, a biological aeration method using bacteria or a mechanical purification method using an aeration filter or the like can be considered.

  As a mechanical aeration system, for example, a gas-liquid dissolving fluid in which a gas is pressurized and dissolved in a liquid is released by a pressure reducing valve, and ejected and discharged from a discharge hole into a liquid tank while generating fine bubbles. There is a fine bubble generator (see Patent Document 1). In addition, aeration is performed while fluidizing the filter medium layer by the flow of raw water. Flow of fluidizing the filter medium layer by passing raw water upward using a filter medium with a particle size slightly larger than the specific gravity of water. There is a floor type aeration apparatus (for example, refer to Patent Document 2).

  In addition, a septic tank into which the fish culture water is introduced, a reaction cylinder disposed within the septic tank so that a predetermined space exists between the bottom surface of the septic tank and the fish tank is immersed in the fish culture water, and a reaction cylinder A diffuser placed at the bottom and connected to the aeration pipe to blow air into the reaction cylinder, and filled with an elution filler consisting of microbial metabolites or humic substances containing compounds with phenol-exposed groups in the reaction cylinder Breeding with a bed, a packed bed filled with an elution filler made of crushed stone containing activated silicic acid such as andesite and rhyolite, and a sludge extraction pipe for extracting sludge deposited in the septic tank A water purifier for water has been proposed (see, for example, Patent Document 3).

  On the other hand, it has been practiced since ancient times to use a permanent magnet's magnetic field for drinking water to help promote health. For example, natural magnetite lumps were put into well water, left for a while, and then the water was consumed to help treat the disease. The present inventor has paid attention to the fact that the earth itself is a magnetic material, a magnetic field rolls in outer space with its rotation, and that organisms have a compass function that responds to geomagnetism in those environments. For example, as magnetic sensing bacteria were discovered in 1960, magnetic bacteria hold magnetite particles in the body. It has been found that magnetic bacteria living in the northern hemisphere act with the south pole as an index, and magnetic bacteria living in the southern hemisphere with the north pole as an index. And, it can be considered that a magnetic substance in which biological functions such as humans and animals are also involved.

  The structure of water is composed of bonds (clusters) in which water molecules are attracted to each other by hydrogen, and a cluster of tap water is composed of, for example, an average of 12 water molecules. Water has the property of being activated when affected by magnetism (magnetic force). For this reason, when tap water is passed through a magnetic field in which magnetic force is applied, for example, it consists of an average of six water molecule clusters. There are reports that magnetized water is generated. Focusing not only on the physical change of water when a magnetic field is applied to water, but also on a chemical change such as active hydrogen contained in water, active hydrogen is used in an environment where the south and south poles of a permanent magnet face each other. Is likely to exist stably. Here, active hydrogen is an atomic hydrogen atom, which is easily combined with active oxygen and turned into water, which is effective in removing active oxygen. It has been reported.

  Using magnetized water as drinking water generally increases the absorption rate of the intestines and increases the viscosity. Therefore, the effect of reducing the activity of malignant bacteria such as bacteria is reduced. Will increase the freshness of the vegetables.

  The water contains hydrogen ions (H +) and hydroxide ions (OH−). The hydrogen ions receive electrons from the hydroxide ions and easily generate atomic hydrogen, but the generated active hydrogen is water. It is very unstable because it becomes water and hydrogen ions when it comes into contact with dissolved oxygen and cations such as calcium, sodium and magnesium. However, atomic hydrogen is a magnetic atom whose direction of magnetic moment is not determined if it is in an environment where the same poles of the S and S poles or the N and N poles face each other when atomic hydrogen is generated. Therefore, in the environment where the S pole and the S pole of the apparatus of the present invention are opposed to each other, the active hydrogen does not move in the direction of the magnetic moment and moves in the water. There is a report that it is a stable environment, and this results in the presence of a large amount of active hydrogen in the magnetized water, and the health promoting effect of the magnetized water is exhibited.

  An apparatus for producing magnetized water by applying magnetism to water is known. For example, a plurality of magnetized water chambers (see Patent Document 4) and magnetized chambers each including a holder member having an insertion hole into which a pipe through which a fluid flows can be inserted and a plurality of magnetic field generators incorporated in the holder member are provided. In addition, an inner casing that forms an inner magnetizing flow path is formed by communicating the plurality of magnetizing chambers through a passage, and a magnetizer that combines a permanent magnet and a yoke plate that is magnetically attracted to the magnetizing chamber is disposed. By covering the outside of the outer casing with an outer casing, the magnetized water flowing out from the inner casing is implemented, and an outer magnetized flow path that receives a magnetizing action is formed between them to form a magnetizing action on the water flowing through the pipe Magnetizer (see Patent Document 5), magnetic block magnetized around water passage of water pipe and supply pipe, position and angle in water flow direction In order to open and close the right and left halves, the water passing there is swirled by the magnetic force of the magnetic block to form magnetized water (see Patent Document 6). There has been proposed a magnetized water producing device (see Patent Document 7) including a connecting portion that is freely connected and a left super strong magnet that is slidably provided in the right half.

  Further, a pair of electrodes are arranged so that tap water is interposed, a power source for applying a voltage to both electrodes is provided, and a bubble generating means for generating bubbles in tap water exposed to the interelectrode electric field is provided. The water purifier which removes the chlorine component (refer patent document 8). In the trunk of the jet nozzle, water is passed through a water-permeable hole that runs diagonally with respect to the pipe line, giving a swirling force to the flowing water, inserting the tip of the jet nozzle into the water inlet of the pipe body, and forming an air suction gap. By blowing out the flowing water vigorously in the vicinity of the provided water inlet, air is taken into the flowing water, thereby generating large bubbles, which are ruptured according to the shearing force of the swirling flowing water, and even smaller A fine bubble generator for generating bubbles (see Patent Document 9). In accordance with the screw of the faucet part of the water supply, the fine bubble generator body is screwed, the protrusion is given to the inlet of the secondary processing chamber, and a permanent magnet is placed to increase the fineness and ratio of the bubbles. A fine bubble generator (see, for example, Patent Document 10) has also been proposed.

JP 2001-347145 A JP-A-3-38289 Japanese Examined Patent Publication No. 7-41246 JP 2005-169358 A JP 2005-40694 A JP-A-11-165278 JP 2003-24949 A JP 2001-232365 A JP 2007-117799 A Utility Model Registration No. 3145914

  In view of the problems of the prior art as described above, the present invention can efficiently generate fine bubbles in a target aquarium or water area and generate magnetized water, thereby simplifying aeration of stored water and generation of magnetized water flow. It is also intended to provide an aeration apparatus that is economically performed.

  In order to solve the above problems, a water pump installed in a water tank or water storage, an intake pipe connected to the water pipe of the water pump and sucking air, and aeration water attached to the tip of the water pipe This aeration nozzle is equipped with a water-absorbing part that sucks water from the outside to the inside of the aeration water ejection nozzle, generates a swirling flow inside the aeration water ejection nozzle, and cavitation due to the pressure reducing action caused by the generated swirling flow The first characteristic is that the fine water-containing water flow is discharged while generating a fine bubble and applying a magnetic field by the venturi effect of releasing the pressure of the water flow in which the effect and the atmosphere are pressurized and dissolved by the decompression means. The second feature is that the water absorbing portion is a hole, groove or sandy rough surface carved on the outer peripheral surface of the aeration pipe. Furthermore, a third feature is that at least two static mixers orthogonal to each other are arranged inside the aerated water jet nozzle. Furthermore, a fourth feature is that self-priming intake means for introducing air as fine bubbles using negative pressure generated in the mixer is provided.

The present invention has the following excellent effects.
(1) The pollutant can be oxidatively decomposed by aeration of fine bubbles. Moreover, not only can the magnetized water be supplied to activate the microorganisms in the water, but also the concentration of dissolved oxygen in the water can be increased and the survival rate of the aquatic product can be increased.
(2) By sufficiently supplying oxygen, decomposition and growth of organic substances are promoted, and organic substance decomposition in lakes and marshes is promoted.
(3) By forming a concave or sandy rough surface with a substantially U-shaped cross section in a side view at the end of the venturi tube on the side of aeration water discharge, fine bubbles are further subdivided by interaction with the vortex The amount of generated bubbles can be greatly increased.
(4) It is not necessary to provide a separate liquid flow generator for circulating and pumping fluid in the water area, and the size, weight, and space can be reduced.
(5) Oxygen supply and water flow can be generated at the same time with one device, and harmful gas, suspension, organic matter, harmful bacteria, etc. in the water can be removed by bubbles generated.
(6) Since an alternating magnetic field is naturally applied by intake air or running water, no special power is required to generate the magnetic field.

It is a schematic diagram which shows one Example of the aeration apparatus which concerns on this invention. It is a schematic diagram which shows an example of an intake part. It is a schematic diagram which shows the other example of an intake part. (A) which shows an example of an ejector pipe | tube is side sectional drawing, (b) is a front view. It is a perspective view which shows the example of engraving the groove on an ejector pipe | tube. It is a schematic diagram which shows the other Example of the aeration apparatus which concerns on this invention. It is a perspective view which shows an aeration water ejection nozzle. (A) which shows an aeration water jet nozzle is a longitudinal cross-sectional view, (b) is a cross-sectional view. It is a schematic diagram which shows a conventional apparatus. It is a schematic diagram which shows a conventional apparatus.

  As shown in FIG. 1, an aeration apparatus according to the present invention includes a running water pump 1 installed in water, an intake section 5 incorporating a magnet 6 provided on the water, and a water suction pipe 7 connected to the running water pump 1. The basic configuration includes a water pipe (Venturi pipe) 3 functioning as a decompression section, an intake pipe 4 connected to the water pipe 3, and an aeration water jet pipe 8 provided with an ejector pipe 2. FIG. 10 shows an example of a conventional apparatus. The drain pipe 3 of the flowing water pump 1 communicates with the bubble generator 2, and the air supply pipe 4 communicates with the middle part of the water flow pipe 3 from directly above, and the air supply pipe 4 is an air supply fan. The atmosphere A sent from 5 is ejected into the water flow W in the water pipe 3. As a result, the water flow W contains a large amount of air, and the same is true in that an aeration effect is obtained when ascending from the bubble generation tank 2.

  As shown in FIG. 2, the intake portion 5 has a flat intake port 5a whose both ends are crushed and a propeller 10 with a built-in magnet 6 as shown in FIG. It is delivered to the intake pipe 4. The water pipe 3 uses a venturi effect to depressurize and pressurize the air A sucked from the intake portion 5, and has a long tapered portion 3a whose diameter is increased from the upstream side to the downstream side. An end (exit portion) on the discharge side is formed in an outward trumpet shape. And the external liquid A is taken in and the gas-liquid mixed water AW with which the bubble was mixed is produced | generated.

  In the water flow pipe 3, when the bubbles generated in the flowing water pass through the tapered pipe, the flow velocity increases and the pressure is reduced and expanded, and then the pressure is increased and contracted as the cross-sectional area increases. Bubbles are subdivided by the generated shearing force and fine bubbles are generated.

  Further, as shown in FIGS. 4 to 5, the water flow is introduced into the aeration water jet pipe 8 provided with the ejector pipe 2, becomes a swirling flow along the inner wall surface, and is sucked into the central portion by the generated centrifugal force. A force is generated, and the stored water is sucked from the water inlet 2 a of the ejector pipe 2. At the same time, the swirling water flow sucks in the atmosphere, and the water flow descends in the direction of the outlet by the four water flow guide grooves 14 of the four static mixers 13 projecting from the inside of the pipe. To form fine bubbles. Furthermore, cavitation (cavitation) occurs due to turbulent flow generated by the swirling flow colliding with the grooves 11 and the rough sand surface 12 formed on the inner and outer peripheral surfaces around the outlet of the aeration water jet pipe 8, and further refinement. Promotes foaming.

  That is, the running water pump 1 installed in the water storage W of the water tank or the water area, the intake pipe 4 connected to the water pipe 3 of the water pump 1 and sucking the atmosphere, and the aerated water attached to the tip of the water pipe 3 The water absorption part 2a which consists of the jet nozzle 8 and sucks the stored water from the outside to the inside of the aeration water jet nozzle 8 is provided to generate a swirling flow inside the aeration water jet nozzle 8 and to be generated by the generated swirling flow. Due to the cavitation effect due to the decompression action and the venturi effect of releasing the pressure of the water stream in which the atmosphere is pressurized and dissolved by the decompression means, fine bubbles are generated and the magnetized microbubble-containing water stream is discharged while applying a magnetic field.

  Also, as shown in FIGS. 6 to 8, a plurality of permanent magnets 6 and a static mixer 13 for creating an alternating magnetic field of N and S are attached to the supplied water, and the atmosphere is sucked from the intake hole 2b, It may be of a type in which the aeration water ejection nozzle 9 that generates fine bubbles by cavitation action is attached to the outside of the reservoir. In this case, aeration can be performed simultaneously with the magnetization of water to supplement dissolved oxygen, which is particularly useful as a supply water nozzle to the aquaculture pond. In addition, it replaces with the static mixer 13, and as shown in FIG. 10, you may perform aeration using the propeller 10, and can obtain the effect of an expectation.

  In addition, as an air intake portion, a method in which air is sucked in toward a negative pressure generated in a static impeller can be used, and in addition to the above embodiment, air is sucked from a hole in a cylindrical pipe along the impeller. A gas blowout hole on the back of a hollow box-type impeller fixed to the ventilation hole of the pipe, and a cylindrical pipe along the back in the rotational direction of the impeller attached to the pipe spirally. Those equipped with gas outlets can also be used.

  Such a self-priming intake part can generate a large amount of air A as ultrafine bubbles in running water. That is, it is possible to generate a strong vacuum pressure in the flowing water and to suck the atmosphere into the flowing water with a small energy. Moreover, since the air is made extremely fine, the dissolution efficiency of oxygen can be increased. Furthermore, the bubbles adsorb organic substances in the lake on the surface.

  As the permanent magnet used in the present invention, for example, a permanent magnet having a surface of 3000 gauss or more such as a neodymium magnet or a samarium magnet is preferable.

The apparatus of the present invention performs purification treatment on, for example, ponds, farms, sewage, livestock wastewater, and a wide range of industrial wastewater. That is, CO ₂ in the atmosphere is forcibly sucked and dissolved in water to promote the carbon assimilation action of aquatic plants such as seaweeds, seaweeds, aquatic plants and aquatic algae, and increase dissolved oxygen. Moreover, the activity promotion effect by paramagnetic oxygen. Dissolved oxygen is increased by releasing the disordered magnetism of the oxygen band in the atmosphere further disordered by the repulsive force generated by making the same poles of the magnets face each other, and preferably 7-10 PPM is secured. Can do. In addition, by forcibly incorporating nitrogen into water, it promotes the nitrogen cycle and metabolic activity of aquatic organisms, generates nitrogen assimilation, and organic nitrogen components (for example, proteins and nucleic acids) necessary for aquatic products. Promote generation.

DESCRIPTION OF SYMBOLS 1 Flowing water pump 2 Ejector pipe 2a Water intake hole 2b Air intake hole 3 Water flow pipe (Venturi pipe)
4 Intake pipe 5 Intake section 5a Inlet 6 Permanent magnet 7 Intake pipe 8 Aeration water ejection pipe 9 Aeration water ejection nozzle 10 Propeller with built-in magnet 11 Groove 12 Sand surface rough surface 13 Static mixer 14 Flow water guiding groove W Water flow A Atmosphere

Claims (4)

The aeration water pump installed in the water tank or water storage, an intake pipe connected to the water pipe of the water pump and sucking air, and an aeration water jet nozzle attached to the tip of the water pipe A water-absorbing part that sucks the stored water from the outside to the inside of the water jet nozzle is provided to generate a swirl flow inside the aeration water jet nozzle, and the cavitation effect due to the decompression action caused by the generated swirl flow and the atmosphere are pressurized and dissolved. An aeration apparatus characterized by discharging a magnetized fine bubble-containing water flow while generating a fine bubble by applying a venturi effect of releasing the pressure of the water flow by a decompression means and applying a magnetic field. 2. The aeration apparatus according to claim 1, wherein the water absorption part is a hole, a groove or a sandy rough surface carved on the outer peripheral surface of the aeration pipe. The aeration apparatus according to claim 1 or 2, wherein at least two orthogonal static mixers are arranged inside the aeration water jet nozzle. The aeration apparatus according to claim 3, further comprising a self-priming intake device that introduces air as fine bubbles using negative pressure generated in the static mixer.

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