JP2010137180A - Apparatus for emulsification - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for emulsification capable of generating an emulsifying state. <P>SOLUTION: The apparatus for emulsification 10 comprises a mixing pump 30, a water source 20, a water feeding adjuster 40, a gas feeding adjuster 50, and an emulsifying device 70. The water source 20 is connected to the mixing pump 30, and the water feeding adjuster 40 is connected to the mixing pump 30. Further, the gas feeding adjuster 50 is connected to the mixing pump 30. The mixing pump 30 dissolves air in water and thereafter outputs a high pressure gas and liquid mixture. The emulsifying device 70 is connected to the mixing pump 30, and has a housing 71 whose interior space is comparted into a front chamber 73 and a rear chamber 74 by a partition wall 72. The emulsified state is generated by a cavitating phenomenon (cavitation) when the high pressure gas and liquid mixture passes through pores 75 as the partition wall 72 has a plurality of the pores 75. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an emulsifying apparatus, and more particularly to an apparatus for emulsifying a high-pressure gas-liquid mixture by cavitation.

  Fine bubbles generated by depressurizing water in which air is dissolved are widely used, and it has been successfully applied particularly to water quality treatment and related processes. The smaller the bubbles, the longer the residence time in the water and the greater the effect produced. Emulsification refers to the maximum density of bubbles in water. Since the bubble diameter required for emulsification is smaller than a few micrometers, how to obtain bubbles with a smaller diameter and a higher density is an important issue in the pressure flotation separation method.

  The “ultrafine bubble generator” disclosed by Taiwan Patent No. I245667 dissolves air in water by a multistage pump to generate a gas-liquid mixture, and then outputs the gas-liquid mixture to a decompression device. Ultrafine bubbles are released by instantaneously depressurizing the gas-liquid mixture.

  However, due to the structure of the invention described above, the emulsification conditions cannot be reached due to the limited size and density of the bubbles.

Taiwan Patent No. I245667

  When the inventor changes the speed in the high-speed water channel, the pressure of a part is lower than the vapor pressure of the water, so that the water is evaporated into a cavitation bubble, after which the cavitation bubble collapses, Found to release high energy. This phenomenon is referred to as cavitation in fluid mechanics.

  The inventor further found that when the gas-liquid mixture passes through the cavity zone, the air bubbles are released from the water, and when the cavity bubbles are degenerated and collapsed, the cavity bubbles contained. It was discovered that the air breaks down into fine bubbles, and the high energy released by the collapse and collapse of the hollow bubbles drastically increases the bubbles from the water, producing an emulsifying effect.

  Therefore, the main object of the present invention is to provide an emulsifying device that allows bubbles to diffuse into water by hydrodynamic cavitation and produce an emulsified state like milk.

  In order to achieve the above object, an emulsifying apparatus according to the present invention includes a mixing pump, a water source, a water supply controller, an air supply controller, and an emulsifier. The water source is connected to the mixing pump for supplying water to the mixing pump. A water regulator is connected to the mixing pump to regulate the amount of water flowing into the mixing pump. The air supply regulator is connected to the mixing pump for adjusting the amount of air flowing into the mixing pump. The mixing pump dissolves air in water and then outputs a high-pressure gas-liquid mixture. The emulsifier is connected to a mixing pump and has a housing. The housing is divided into a front chamber and a rear chamber by a separator, and the separator has a plurality of pores. When passing through, an emulsified state is generated by cavitation.

  Preferably, the emulsifier pores have a width of 0.3 mm or less, and the cavity generation zone occupies 20% or more of the cross-sectional area of the pores.

  Preferably, the emulsifier has a gap adjusting plate mounted so as to be movable on one side of the separator, and the gap adjusting plate has a plurality of pores. The gap adjusting plate is moved, the position of the pore is adjusted with respect to the pore of the separator, and the gap formed by shifting the two pores facing each other is adjusted.

  Preferably, the mixing pump is centrifugal and has at least one rotor rotating with the pump shaft and at least one stator fixed to the pump case. The rotor and the stator separately have a plurality of passages arranged on the periphery of the disk in order to allow the high-pressure gas-liquid mixture to pass in the axial direction.

  In order to clarify the technical contents and features of the present invention, the description will proceed based on the following drawings and detailed embodiments.

  The emulsification apparatus 10 used for description of the technical content of the present invention is shown in the plan view of FIG. The emulsification apparatus 10 includes a water source 20, a mixing pump 30, a water supply controller 40, an air supply controller 50, a check valve 60, an emulsifier 70, and necessary pipelines.

  The water source 20 is connected to the mixing pump 30 by a first pipe 25 in order to supply water to the mixing pump 30. In order to ensure the cleanliness of the water flowing into the mixing pump 30, the water source 20 has a filter 21 at the outlet. The filter 21 can filter solid foreign matter in water and avoid the clogging phenomenon of the emulsification passage.

  The water supply controller 40 is attached to the first pipeline 25 in order to adjust the amount of water supplied from the water source 20 to the mixing pump 30.

  The air supply controller 50 is attached to the second pipe 45 in order to adjust the amount of air flowing into the mixing pump 30. The second line 45 communicates with the first line 25 and is positioned between the water supply regulator 40 and the mixing pump 30.

  The mixing pump 30 is connected to the water source 20 and generates a low pressure per water inlet, induces water into the pump case, and sucks air and dissolves it in water, so that the pressure is 4.0 kg / cm 2. The above saturated gas-liquid mixture is output. The mixing pump 30 shown in FIGS. 2 and 3 is a centrifugal type, and has a rotor 33 that rotates together with the pump shaft 31 and a stator 34 that is fixed to the pump case 32 as compared with a conventional centrifugal pump. In order to allow the high-pressure gas-liquid mixture to pass in the axial direction, the disk 35 of the rotor 33 has a plurality of passages 37, and the disk 36 of the stator 34 has a plurality of passages 38. The explanation of the operation will be described later. In the present embodiment, the passages 36 and 38 have a circular shape, but other shapes such as an elongated shape are possible without being limited to a circular shape. Further, it is possible to produce a saturated gas-liquid mixture with higher pressure by duplicating the combination of the rotor 33 and the stator 34 and molding a multistage mixing pump.

  The check valve 60 is attached to the second pipeline 45 and prevents the water in the first pipeline 25 from flowing back to the air supply regulator 50 via the second pipeline 45. 25 and the air flow regulator 50.

  The emulsifier 70 is connected to the mixing pump 30 by the third pipe 55. As shown in FIG. 4, the emulsifier 70 according to the first embodiment of the present invention has a housing 71, and the housing 71 is divided into a front chamber 73 and a rear chamber 74 by an isolation plate 72. The separator 72 has a plurality of pores 75 as the first pores, and the pores 75 constitute an emulsification passage. Therefore, when the gas-liquid mixture flows, it is possible to cause a cavitation phenomenon. is there. Since the cavitation phenomenon occurs only at the periphery of the pore 75, in order to obtain a cavitation zone having a relatively high ratio, the width a of the pore 75 is 0.33 mm or less and the cavitation zone is narrowed. It is preferable that the cross-sectional area of the hole 75 be 20% or more.

  When the emulsifying device 10 is operated, the mixing pump 30 starts operation, sucks water supplied from the water source 20 through the first conduit 25, and simultaneously draws an appropriate amount of air from the air supply controller 50 through the second conduit 45. Suction. When water and air flow into the pump case 32 and rotate with the rotor 33, the energy of the rotor 33 is absorbed, so the pressure and speed increase, and at the same time, the air is dissolved in water to produce a high-pressure saturated gas-liquid mixture. It is possible to make it. When the gas-liquid mixture is guided to the discharge port 39 by the rotor 33, the gas-liquid mixture can pass through the passages 36 and 38 of the rotor 33 and the stator 34 along the axial direction. Since the rotor 33 rotates to face the stator 34 and generates a cutting action, the bubbles that have not been homogenized are broken down finely, and the bubbles are uniformly distributed in the water, thereby shortening the time for dissolving the air in the water. Is possible. The gas-liquid mixture flowing out from the pump case 32 is output to the front chamber 73 of the emulsifier 70 through the third pipe 55. When the gas-liquid mixture passes through the pores 75 of the emulsifier 70, the emulsification is completed by a cavity phenomenon, and then flows into the water tank 80 from the chamber 74 through the fourth pipe 65 or returns to the same water source 20. Is possible.

  An emulsifier 70a according to the second embodiment of the present invention is shown in FIG. In this embodiment, the emulsifier 70a has a gap adjusting plate 76 that is larger than that of the emulsifier 70 described above. The gap adjusting plate 76 is arranged so as to be movable on one side of the separator plate 72 and has a plurality of pores 77 as second pores. In the present embodiment, the pores 75 and 77 of the separator plate 72 and the gap adjusting plate 76 are arranged at a certain distance and the width can reach several mm, so the gap adjusting plate 76 is moved, If the position of the pore 77 is adjusted with respect to the pore 75 of the separator and the two pores 75 and 77 facing each other are shifted or not positioned on the same axis, the above-mentioned pore width a is constant. It is possible to adapt to different fluid conditions without being restricted. When the emulsification passage is blocked, the fixed foreign matter can be discharged by adjusting the gap b to the maximum.

  The above description and all the descriptions related to the drawings are merely examples for explaining the present invention, and the scope of the present invention cannot be limited. Therefore, the above-described embodiments do not depart from the scope of the present invention. It should be appreciated that slight changes are made.

It is a top view which shows the emulsification apparatus by this invention. It is sectional drawing which shows the mixing pump in the emulsification apparatus by this invention. It is a partial top view which shows the mixing pump in the emulsification apparatus by this invention. It is sectional drawing which shows the emulsifier in the emulsification apparatus by 1st Embodiment of this invention. It is sectional drawing which shows the emulsifier in the emulsification apparatus by 2nd Embodiment of this invention.

Explanation of symbols

10: emulsification device, 20: water source, 21: filter, 25: first pipe, 30: mixing pump, 31: pump shaft, 32: pump case, 33: rotor, 34: stator, 35: disk, 36: disk 37: passage, 38: passage, 39: outlet, 40: water supply regulator, 45: second pipeline, 50: air regulator, 55: third pipeline, 60: check valve, 65: fourth Pipe: 70: Emulsifier, 70a: Emulsifier, 71: Housing, 72: Separating plate, 73: Front chamber, 74: Rear chamber, 75: Pore, 76: Gap adjusting plate, 77: Pore, 80: Aquarium, a: width, b: gap

Claims (4)

A mixing pump;
A water source connected to the mixing pump for supplying water to the mixing pump;
A water supply controller connected to the mixing pump to adjust the amount of water flowing into the mixing pump;
An air supply controller connected to the mixing pump to adjust the amount of air flowing into the mixing pump;
An emulsifier connected to the mixing pump and having a housing, wherein the housing is divided into a front chamber and a rear chamber by a separator;
With
The mixing pump dissolves air in water, and then outputs a high-pressure gas-liquid mixture. Since the separator has a plurality of first pores, the high-pressure gas-liquid mixture passes through the first pores. At this time, an emulsification state is generated by a cavity phenomenon.   2. The emulsification apparatus according to claim 1, wherein the width of the first pore is 0.3 mm or less, and the cavity generation region occupies 20% or more of the cross-sectional area of the first pore.   The emulsifier further includes a gap adjusting plate that is mounted so as to be movable on one side of the separator plate, the gap adjusting plate has a plurality of second pores, and moves the gap adjusting plate. And adjusting the position of the second pore with respect to the first pore to adjust a gap generated by shifting the first pore and the second pore facing each other. The emulsification apparatus according to claim 1.   The mixing pump is centrifugal, and has at least one rotor that rotates together with the pump shaft, and at least one stator that is fixed to the pump case. The rotor and the stator axially move the high-pressure gas-liquid mixture. The emulsification apparatus according to claim 1, wherein the emulsification apparatus has a plurality of passages arranged separately on the periphery of the disk for passing through.

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