Highly efficient gas dissolving device

Abstract

A highly efficient gas dissolving device comprising: a liquid flow tube body comprising: a water inlet formed at one end of the liquid flow pipe body and serving to receive liquid; an outlet opening formed at the end opposite the water inlet; a gas inlet arranged on the outer surface of the liquid flow tube body closer to the water inlet than the outlet opening and continuously connected to the interior of the liquid flow tube body and serving to suck in gas; a rib disposed on the inner surface of the liquid flow tube body; and a gas guide member which is a tube body arranged in the liquid flow tube body, wherein the outer diameter of the gas guide member is smaller than the inner diameter of the liquid flow tube body to cover the gas inlet, wherein a gas guide gap is formed between the outer surface of the gas guide member and the inner surface of the liquid flow tube body, the gas guide member comprising: a flange end formed at the end of the gas guide member near the gas inlet, the outer surface of the flange end being raised and abutting against the inner surface of the liquid flow tube body; an inclined surface end formed at the end opposite the flange end; a gas guide rib arranged on the outer surface of the gas guide element and connected to the inclined surface end, wherein a gas guide channel is formed in the gas guide gap; and a plurality of projections located at intervals on the outer surface of the gas guide member adjacent to the inclined surface end, wherein a plurality of gas outlet openings are formed between the projections and the gas guide ribs at the inclined surface end for expelling the gas introduced via the gas inlet; wherein the rib is located in the axial direction of the gas outlet openings and serves to break up the bubbles formed by the gas; characterized by that the inclined surface end forms an inclination angle which is in the range of 45° to 75° to the axis of the liquid flow tube body, whereby the time required for the gas to be ejected from the gas outlet openings located near the gas inlet and the time required for the gas to be ejected from the gas outlet openings remote from the gas inlet are equal.

Description

Field of the invention

[0001] The present invention relates to an improved aeration tube structure and, more particularly, to a highly efficient gas dissolving device that breaks bubbles into small units to increase the total surface area of ​​the bubbles. State of the art

[0002] The dissolved oxygen content in water has a significant impact on the growth and survival of aquatic organisms. Controlling the dissolved oxygen content in water is particularly important in aquaculture and microorganism-based wastewater treatment. Typically, the most common method for increasing dissolved oxygen content is to introduce air, either at the surface or at depth, or to spray water to allow the water to come into contact with the air. The basic principle is always to increase the contact time and contact area between water and air to increase the dissolved oxygen content in the water.

[0003] In traditional aquaculture, water wheels are often used to pump water. By rotating the paddles, a motor is used to agitate the water surface, thereby introducing air bubbles into the water to increase the dissolved oxygen content. However, during the aquaculture process, organic waste accumulates at the bottom of the tank, which negatively affects the dissolved oxygen content. It is obvious that water wheels can only operate at the water surface and are therefore unable to effectively increase the dissolved oxygen content in deep water or solve the problem of siltation at the bottom of the tank. In wastewater treatment, an aeration cylinder is usually used at the bottom of the tank to assist microbial sludge decomposition and to introduce bubbles from the bottom of the tank into the water, thus increasing the dissolved oxygen content.At the same time, the rising bubbles can help to stir the pool floor and disperse flakes to reduce silting of the pool floor.

[0004] However, the aeration cylinder must be used in conjunction with a filtration device to separate pollutants and contaminants. With prolonged use, the filtration device is prone to clogging due to the pollutants and contaminants contained in the wastewater, so it must be cleaned or replaced regularly to ensure proper operation.

[0005] Taiwanese patent M577760 discloses an aeration tube based on the Venturi principle. Water is entrained by incoming high-velocity gas, forming a gas-liquid mixture within the tube, which is then discharged to increase the oxygen content in the water.

[0006] Taiwanese patent M608119 further discloses a structure with branching pipes that reduces the impact velocity of the bubbles to thereby increase the dissolved oxygen content.

[0007] However, with conventional aeration tubes, there is the problem that the generated bubbles combine with each other within the tube due to insufficient gas flow velocity and fuse into larger bubbles. This reduces the total surface area of ​​the bubbles and thus reduces the efficiency of oxygen enrichment in the aeration tube. Alternatively, the bubbles may combine with each other before passing through the segmentation structure, resulting in an excessively large bubble volume and a poor segmentation effect.

[0008] The inventor has continuously worked on improvements in view of the shortcomings of conventional aeration devices, such as the unsolved problem of sediment formation on the tank bottom, the need to replace or clean the filtration device after prolonged use, and the excessive bubble volume, which reduces the total surface area and impairs the efficiency of oxygenation. Object of the invention

[0009] The main object of the present invention is to control the length of the gas guide channel by the inclination of the inclined surface end of the gas guide element so that the gas is discharged from different gas outlet openings simultaneously.

[0010] Another object of the present invention is to arrange a rib directly in the gas outlet direction, whereby the gas discharged from the gas outlet ports is directly divided into small bubbles.

[0011] A still further object of the present invention is to arrange a plurality of ribs, whereby the bubbles divided by the first rib are subsequently passed on to the second rib and divided again there.

[0012] The highly efficient gas dissolving device according to the invention comprises a liquid flow tube body and a gas guide element, wherein the liquid flow tube body has a water inlet, a gas inlet, an outlet opening and a rib, wherein the water inlet is formed at one end of the liquid flow tube body and serves to receive liquid, the outlet opening is formed at the end of the liquid flow tube body opposite the water inlet and serves to discharge the fluid mixed with gas and liquid, and the gas inlet is arranged on the outer surface of the liquid flow tube body closer to the water inlet than the outlet opening and is continuously connected to the interior of the liquid flow tube body and serves to suck in gas.

[0013] The gas guide member is a tubular body disposed in the liquid flow tube body, wherein the outer diameter of the gas guide member is smaller than the inner diameter of the liquid flow tube body to form a gas guide gap and cover the gas inlet so that gas flows along the gas guide gap, wherein the gas guide member has a flange end, an inclined surface end, a gas guide rib, and a plurality of projections, wherein the flange end is located at the end of the gas guide member near the gas inlet, the inclined surface end is located at the end of the gas guide member opposite the flange end, the gas guide ribs are located on the outer surface of the tubular body of the gas guide member, and the plurality of projections are located at intervals on the outer surface of the gas guide member adjacent to the inclined surface end and are each connected to the gas guide rib.

[0014] Furthermore, the outer surface of the flange end is raised, wherein the outer surfaces of the plurality of projections abut against the inner surface of the gas guide member to support the gas guide member such that the axis of the gas guide member coincides with the axis of the liquid flow tube body, wherein the gas guide rib forms a gas guide channel within the gas guide gap, and a plurality of gas outlet openings are formed between the gas guide rib and the projections at the inclined surface end, whereby gas can be expelled from the gas guide channel to selectively control the point of formation of the bubbles.

[0015] In a preferred embodiment of the present invention, the inclined surface end forms an inclination angle which is in the range of 45° to 75° to the axis of the liquid flow tube body, so that the length of the gas guide element on the side near the gas inlet is greater than on the opposite side, whereby after the gas is introduced into the gas guide gap, the gas paths to the individual gas outlet openings are approximately the same length, in order to control that the gas is evenly ejected from the gas outlet openings and thus to form bubbles of similar volumes.

[0016] Preferably the angle of inclination is 47.5°, 50°, 55°, 60°, 65°, 70° or 72.5°.

[0017] Specifically, the gas inlet is located on the lateral outer surface of the liquid flow tube body. When gas is introduced into the gas guide gap via the gas inlet, the distance to the gas outlet ports near the gas inlet is inevitably shorter, making it easier to eject the gas from these gas outlet ports. However, by arranging the inclination angle, it can be achieved that the distances between the gas outlet ports near the gas inlet and the gas outlet ports far from the gas inlet and the gas inlet are approximately equal, ensuring a uniform distribution of the gas ejected from the gas outlet ports.

[0018] In a preferred embodiment of the present invention, the rib comprises a first rib and at least two second ribs, wherein the first rib is located on the side remote from the outlet opening and in the axial direction of the gas outlet openings and the second ribs are located on the side closer to the outlet opening compared to the first rib and are arranged on both sides of the reference line for which the axial direction of the gas outlet openings is used.

[0019] In a preferred embodiment of the present invention, after the gas is expelled from the gas outlet openings and forms bubbles, the bubbles are first dispersed by the first rib, then the bubbles are passed along the side surface of the first rib to the second ribs where a second dispersal occurs, thereby effectively reducing the volume of the bubbles.

[0020] Because the first rib is arranged in the axial direction of the gas outlet ports, the bubbles ejected from the gas outlet ports are immediately fragmented by the first rib before they can coalesce. The bubbles are then forwarded downstream to the second ribs for secondary fragmentation and directly ejected from the liquid flow tube body, preventing the bubbles from reassembling into large bubbles in the liquid flow tube body.

[0021] In a preferred embodiment of the present invention, the gas guide rib comprises at least two first gas guide ribs and at least two second gas guide ribs, wherein both the first gas guide ribs and the second gas guide ribs are arranged on two opposite sides of the gas guide element and are arcuate.

[0022] In a preferred embodiment of the present invention, a first gas guide channel is formed between the first gas guide ribs and the projections and a second gas guide channel is formed between the second gas guide ribs and the projections, wherein the first gas guide ribs are located closer to the gas inlet than the second gas guide ribs and the length of the first gas guide channel is shorter than the length of the second gas guide channel.

[0023] In a preferred embodiment of the present invention, the side surfaces of the gas guide ribs located near the gas inlet are perpendicular to the axis of the gas inlet, whereby the gas introduced into the gas guide gap and flowing along the outer surface of the gas guide element is collected by the gas guide ribs and guided to the gas outlet openings.

[0024] In a preferred embodiment of the present invention, the cross-sectional shape of the rib in the axial direction parallel to the liquid flow tube body has a trapezoidal shape to improve the effect of breaking up the bubbles.

[0025] Preferably, the inclination of the side of the rib near the water inlet is greater than the inclination of the side far from the water inlet.

[0026] Preferably, a plurality of gas outlet openings are provided, wherein the number of ribs corresponds to the number of gas outlet openings.

[0027] In a preferred embodiment of the present invention, the gas guide element further comprises a protruding poka-yoke button arranged on the outer surface of the gas guide element, and the liquid flow tube body further comprises a poka-yoke groove aligned with the protruding poka-yoke button. Since the inclination angle determines a fixed mounting direction, the user can avoid incorrect mounting direction by ensuring the fit of the protruding poka-yoke button and the poka-yoke groove.

[0028] Preferably, both the liquid flow tube body and the gas guide element have a threaded bore, wherein the liquid flow tube body is screwed into the corresponding, aligned threaded bores by means of a screw in order to fasten the gas guide element in the liquid flow tube body. Brief description of the drawings Fig. 1 shows an exploded view according to an embodiment of the present invention; Fig. 2 shows a schematic partial sectional view according to the embodiment of the present invention; Fig. 3 shows a sectional view along the section line III-III of Fig. 2 according to the embodiment of the present invention; Fig. 4 shows a side view of the gas guide element according to the embodiment of the present invention; Fig. 5 shows a sectional view of the liquid flow tube body along the section line III-III of Fig. 2 according to the embodiment of the present invention; Fig. Figure 6 shows a sectional view of the first application along the section line VI-VI of Fig. 2 according to the embodiment of the present invention; Fig. 7 shows a plan view of the gas guide element according to the embodiment of the present invention; Fig. 8 shows a schematic view of the second application of the gas guide element according to the embodiment of the present invention; Fig. 9 shows a schematic axial sectional view of a rib according to the embodiment of the present invention; Fig. 10 shows a schematic sectional view along the section line XX of Fig. 2 according to the embodiment of the present invention. Detailed description of the implementation examples

[0029] For a better understanding of the present invention, a detailed explanation is provided below in conjunction with the accompanying drawings and exemplary embodiments. The exemplary embodiments illustrated in the drawings represent merely some of the possible embodiments of the invention and are not to be understood as exhaustive or limiting examples. Rather, these examples serve to deepen the understanding of the disclosure content. All further exemplary embodiments that can be derived by a person skilled in the relevant technical field based on this disclosure without inventive step fall within the scope of the present invention.

[0030] Unless otherwise stated or defined, all technical and scientific terms used herein have common sense meanings to one of ordinary skill in the art to which this invention pertains. The terms used in this specification are for the purpose of describing particular embodiments only and are not intended to be limiting.

[0031] The Fig. 1 to 10 show schematic views of an embodiment of the present invention. Fig. 1 shows an exploded view according to the embodiment of the present invention; and Fig. 2 shows a schematic partial sectional view according to the embodiment of the present invention. The highly efficient gas dissolving device according to the invention comprises a liquid flow tube body 1 and a gas guide element 2, wherein the liquid flow tube body 1 has a water inlet 11, a gas inlet 12, an outlet opening 13, and ribs 14. The water inlet 11 is formed at one end of the liquid flow tube body 1 and serves to receive liquid, the outlet opening 13 is formed at the end of the liquid flow tube body 1 opposite the water inlet 11 and serves to discharge the fluid mixed with gas and liquid, and the gas inlet 12 is arranged on the outer surface of the liquid flow tube body 1 closer to the water inlet 11 than the outlet opening 13 and serves to suck gas into the liquid flow tube body 1.

[0032] It is based on the Fig. 2, Fig. 3 and Fig. 4 referred to. Fig. 3 shows a sectional view along the section line III-III of Fig. 2 according to the embodiment of the present invention; and Fig. Figure 4 shows a side view of the gas guide element 2 according to the embodiment of the present invention. The gas guide element 2 is a tubular body arranged in the liquid flow tube body 1, wherein the outer diameter of the gas guide element 2 is smaller than the inner diameter of the liquid flow tube body 1 to form a gas guide gap 201 and cover the gas inlet 12 so that gas flows along the gas guide gap 201. The gas guide element 2 has a flange end 21, an inclined surface end 22, gas guide ribs 23, and a plurality of projections 24. The flange end 21 is located at the end of the gas guide element 2 near the gas inlet 12, and the inclined surface end 22 is located at the end of the gas guide element 2 opposite the flange end 21.the gas guide ribs 23 are located on the outer surface of the tubular body of the gas guide element 2 and the plurality of projections 24 are located at intervals on the outer surface of the gas guide element 2 adjacent to the inclined surface end 22 and are each connected to the end of the corresponding gas guide rib 23 located near the inclined surface end 22.

[0033] Furthermore, the flange end 21 protrudes from the outer surface of the gas guide member 2, wherein the flange end 21 and the outer surfaces of the plurality of projections 24 abut against the inner surface of the gas guide member 2 to support the gas guide member 2 such that the axis of the gas guide member 2 coincides with the axis of the liquid flow tube body 1. The gas guide ribs 23 protrude from the outer surface of the gas guide member 2 and form a gas guide channel 202 within the gas guide gap 201. Between the gas guide ribs 23 and the projections 24, a plurality of gas outlet openings 241 are formed at the inclined surface end 22, whereby gas can be expelled from the gas guide channel 202 to selectively control the formation point of the bubbles A1.

[0034] In the preferred application, the inclined surface end 22 forms an inclination angle θ ranging from 45° to 75° to the axis of the liquid flow tube body 1, so that the length of the gas guide element 2 is greater on the side near the gas inlet 12 than on the opposite side. Due to the different lengths, after insertion into the gas guide gap 201, the gas paths to the individual gas outlet openings 241 are approximately the same length, thus controlling the gas to be evenly expelled from the gas outlet openings 241 and thus forming bubbles A1 of similar volumes.

[0035] Preferably, the inclination angle θ is 47.5°, 50°, 55°, 60°, 65°, 70° or 72.5°.

[0036] It will be Fig. 5, which is a sectional view of the liquid flow tube body 1 along the section line III-III of Fig. 2 according to the embodiment of the present invention. The ribs 14 comprise a first rib 141 and at least two second ribs 142, wherein the first rib 141 is located on the side remote from the outlet opening 13 and in the axial direction of the gas outlet openings 241, and the second ribs 142 are located on the side closer to the outlet opening 13 compared to the first rib 141 and are arranged on both sides of the reference line for which the axial direction of the gas outlet openings 241 is used.

[0037] It will be Fig. 6, which is a sectional view of the first application along the section line VI-VI of Fig. 2 according to the embodiment of the present invention. Since the first rib 141 is arranged in the axial direction of the gas outlet openings 241, the bubbles A1 ejected from the gas outlet openings 241 are immediately fragmented by the first rib 141 before they can coalesce. Subsequently, the bubbles A1 are forwarded downstream to the second ribs 142 for secondary fragmentation and are directly ejected from the liquid flow tube body 1, so that the bubbles A1 cannot reunite into large bubbles in the liquid flow tube body 1.

[0038] After the bubbles A1 are broken up and expelled from the liquid flow tube body 1, the bubbles A1 enter an unstable state because they are broken up by the first rib 141 and the second rib 142. In this case, the bubbles A1 in the water attract each other and form large bubbles again, causing the water to become turbulent. However, the turbulent water causes the large bubbles to burst. In this way, the effect of the water becoming turbulent can be achieved, and the bubbles A1 continuously coalesce and burst.

[0039] It is based on the Fig. 7 and Fig. 8 is referred to. Fig. 7 shows a plan view of the gas guide element 2 according to the embodiment of the present invention; and Fig. Figure 8 shows a schematic view of the second application of the gas guide element 2 according to the exemplary embodiment of the present invention. The gas guide ribs 23 comprise at least two first gas guide ribs 231 and at least two second gas guide ribs 232, wherein both the first gas guide ribs 231 and the second gas guide ribs 232 are arranged on two opposite sides of the gas guide element 2 and are arcuate in shape.

[0040] A first gas guide channel is formed between the first gas guide ribs 231 and the projections 24 and a second gas guide channel is formed between the second gas guide ribs 232 and the projections 24. As shown in Fig. 2, the first gas guide ribs 231 are located closer to the gas inlet 12 than the second gas guide ribs 232. The length of the first gas guide channel is shorter than the length of the second gas guide channel.

[0041] In a preferred embodiment of the present invention, the side surfaces of the gas guide ribs 23 located near the gas inlet 12 are perpendicular to the axis of the gas inlet 12, whereby the gas introduced into the gas guide gap 201 and flowing along the outer surface of the gas guide element 2 is collected by the gas guide ribs 23 and guided to the gas outlet openings 241.

[0042] It will be Fig. 9 is referred to. Fig. Figure 9 shows a schematic axial sectional view of a rib 14 according to the embodiment of the present invention. The cross-sectional shape of the rib 14 is trapezoidal in the axial direction parallel to the liquid flow tube body 1. After the bubbles A1 are ejected from the gas outlet openings 241, they are broken up into small bubbles A2 by the rib 14.

[0043] Preferably, the inclination of the side of the rib 14 near the water inlet 11 is greater than the inclination of the side far from the water inlet 11. The greater inclination can more effectively improve the fragmentation effect of the bubbles A1.

[0044] In a preferred embodiment of the present invention, the gas guide element 2 further includes a protruding poka-yoke button 25 arranged on the outer surface of the gas guide element 2. The liquid flow tube body 1 further includes a poka-yoke groove 15 aligned with the protruding poka-yoke button 25. Since the inclination angle θ requires a fixed mounting direction, the user can avoid incorrect mounting direction by ensuring the fit of the protruding poka-yoke button 25 and the poka-yoke groove 15.

[0045] It will be Fig. 10 referred to. Fig. 10 shows a schematic sectional view along the section line XX of Fig.2 according to the exemplary embodiment of the present invention. Both the liquid flow tube body 1 and the gas guide element 2 have a threaded bore 30, wherein the liquid flow tube body 1 is screwed into the corresponding, aligned threaded bores 30 by means of a screw 3 in order to fasten the gas guide element 2 in the liquid flow tube body 1.

[0046] The embodiment described above represents merely a preferred embodiment of the invention. Its description is relatively specific and detailed, but is not intended to limit the scope of the invention. All equivalent changes and modifications that can be made by one skilled in the art in accordance with the description and drawings of the invention without departing from the concept of the invention are within the scope of the present invention. List of reference symbols 1 liquid flow tube body 11 Water inlet 12 Gas inlet 13 Outlet opening 14 rib 141 first rib 142 second rib 15 Poka-Yoke Nut 2 Gas guide element 201 Gas guide gap 202 Gas duct 21 Flange end 22 inclined surface end 23 Gas guide rib 231 first gas guide rib 232 second gas guide rib 24 lead 241 Gas outlet opening 25 protruding poka-yoke button 3 screw 30 threaded hole θ angle of inclination A1 blisters A2 small blisters

Claims

[1] A highly efficient gas dissolving device comprising: a liquid flow tube body comprising: a water inlet formed at one end of the liquid flow pipe body and serving to receive liquid; an outlet opening formed at the end opposite the water inlet; a gas inlet arranged on the outer surface of the liquid flow tube body closer to the water inlet than the outlet opening and continuously connected to the interior of the liquid flow tube body and serving to suck in gas; a rib disposed on the inner surface of the liquid flow tube body; and a gas guide member which is a tube body arranged in the liquid flow tube body, wherein the outer diameter of the gas guide member is smaller than the inner diameter of the liquid flow tube body to cover the gas inlet, wherein a gas guide gap is formed between the outer surface of the gas guide member and the inner surface of the liquid flow tube body, the gas guide member comprising: a flange end formed at the end of the gas guide member near the gas inlet, the outer surface of the flange end being raised and abutting against the inner surface of the liquid flow tube body; an inclined surface end formed at the end opposite the flange end; a gas guide rib arranged on the outer surface of the gas guide element and connected to the inclined surface end, wherein a gas guide channel is formed in the gas guide gap; and a plurality of projections located at intervals on the outer surface of the gas guide member adjacent to the inclined surface end, wherein a plurality of gas outlet openings are formed between the projections and the gas guide ribs at the inclined surface end for expelling the gas introduced via the gas inlet; wherein the rib is located in the axial direction of the gas outlet openings and serves to break up the bubbles formed by the gas; characterized by , that the inclined surface end forms an inclination angle which is in the range of 45° to 75° to the axis of the liquid flow tube body, whereby the time required for the gas to be ejected from the gas outlet openings located near the gas inlet and the time required for the gas to be ejected from the gas outlet openings remote from the gas inlet are equal. [2] A high-efficiency gas dissolving device according to claim 1, wherein the rib comprises: a first rib located in the axial direction of the gas outlet openings; and at least two second ribs located on the side closer to the outlet opening compared to the first rib and arranged on both sides of the reference line for which the axial direction of the gas outlet openings is used; wherein the bubbles, after the gas is expelled from the gas outlet ports, are first divided by the first rib and then divided again by the second ribs to reduce the volume of the bubbles. [3] High-efficiency gas dissolving device according to claim 2, wherein the gas guide rib comprises: at least two first gas guide ribs, each of which is arcuate and arranged on two opposite sides of the gas guide element, wherein a first gas guide channel is formed between the first gas guide ribs and the projections; and at least two second gas guide ribs which are arcuately formed and arranged on two opposite sides of the gas guide element, wherein a second gas guide channel is formed between the second gas guide ribs and the projections and the first gas guide ribs are located closer to the gas inlet than the second gas guide ribs; wherein the length of the first gas guide channel is shorter than the length of the second gas guide channel. [4] High-efficiency gas dissolving device according to claim 3, wherein the side surfaces of the gas guide ribs located near the gas inlet are perpendicular to the axis of the gas inlet to guide the flow direction of the gas. [5] A high-efficiency gas dissolving device according to claim 4, wherein the cross-sectional shape of the rib in the axial direction parallel to the liquid flow pipe body has a trapezoidal shape to improve the effect of breaking up the bubbles. [6] A high-efficiency gas dissolving device according to claim 5, wherein the inclination of the side of the rib near the gas outlet openings is greater than the inclination of the side remote from the gas outlet openings. [7] Highly efficient gas dissolving device according to one of claims 1 to 6, wherein a plurality of gas outlet openings are provided, the number of ribs corresponding to the number of gas outlet openings. [8] A high-efficiency gas release device according to any one of claims 1 to 6, wherein the gas guide member further comprises a projecting poka-yoke button disposed on the outer surface of the gas guide member, wherein the liquid flow tube body further comprises a poka-yoke groove matched to the projecting poka-yoke button. [9] Highly efficient gas dissolving device according to one of claims 1 to 6, wherein both the liquid flow tube body and the gas guide element have a threaded bore, wherein the liquid flow tube body is screwed into the corresponding, aligned threaded bores by means of a screw in order to fix the gas guide element in the liquid flow tube body.

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