Bubble fountain type water circulation device

Abstract

The present invention relates to a bubble fountain-type water circulation device, and more particularly, to a bubble fountain-type water circulation device which combines a centrifugal pump and a jet pump, enables water to circularly flow through the function of the centrifugal pump, sucks air through the function of the jet pump, enables water in a high-capacity reservoir to circulate in a high-oxygen saturation state, and enables the water to circulate in a high-oxygen saturation state. According to the improved bubble fountain type water circulation device, anaerobic bottom water is lifted to the surface layer, the content of dissolved oxygen required by self-purification activity of aerobic microorganisms is increased, and the water quality of a reservoir is effectively improved.

Description

Technical Field

[0001] This invention relates to an improved bubble fountain-type water circulation device, and more specifically, to a device that combines a centrifugal pump with a jet pump. The centrifugal pump circulates water while the jet pump draws in air, allowing water in a large-capacity reservoir to circulate under high oxygen saturation. This process raises the anaerobic bottom water to the surface, increasing the dissolved oxygen content required for aerobic microbial self-purification activities, thereby effectively improving the water quality of the reservoir. Background Technology

[0002] Water used to supply drinking water, such as in reservoirs or still lakes, is prone to decay.

[0003] Generally, the water in a reservoir or lake can be divided into surface water and deep water layers based on its depth. The area within a depth of about 8 meters is the surface water layer, which has a relatively high oxygen concentration due to good contact with the atmosphere, and plankton thrives there. However, when plankton reach their reproductive limit, a large number of them die and settle at the bottom. As a result, in the deep water layer below 18 meters, organic matter decomposes, producing nutrients such as nitrogen and phosphorus, leading to water quality deterioration.

[0004] Furthermore, with the development of modern society, the population density is constantly increasing, the use of chemically synthesized products is increasing significantly, and the amount of pollutant emissions is also rising. Various pollution sources flow into water sources such as reservoirs or lakes, resulting in frequent occurrences of pollution, eutrophication, and large-scale algal blooms.

[0005] Despite the efforts made to address these issues, the vast area involved has led to exponentially increasing costs, creating a significant economic burden.

[0006] The most realistic alternative is to add appropriate pollution removal agents to treat the water based on the water quality of the reservoir or lake. However, this method is prone to causing secondary pollution and has raised ongoing controversies about its harmful effects on human health.

[0007] One of the existing technologies related to this is Patent Document 1 (Korean Utility Model Registration No. 20-0261489, Upward Vertical Aeration Type Water Oxygen Supply Device).

[0008] The aforementioned patent document 1 describes a system where water is drawn in and discharged from an aeration tank by a fan, forming a simple circulation structure for aeration, thereby preventing pollution.

[0009] However, the structure of this patent document 1 makes it difficult to achieve large-capacity processing. Although it is suitable for installation and use in confined spaces such as aeration tanks, there are structural limitations that prevent its installation and use in open water bodies such as reservoirs or lakes.

[0010] In addition, because it uses a simple intake and exhaust method, its aeration capacity is weak and it is difficult to carry out large-volume treatment, so it also has obvious limitations in eliminating eutrophication.

[0011] As another prior art, there is Patent Document 2 (Korean Utility Model Publication No. 20-1996-0037409, Reservoir Water Quality Improvement Device).

[0012] The aforementioned patent document 2 is characterized in that it is anchored in a reservoir and helps to alleviate water pollution by raising and circulating the deep water in the reservoir.

[0013] Although this concept aligns with the present invention, if only a simple impeller structure is used, its aeration scattering ability is weak, resulting in low efficiency and obvious limitations.

[0014] Therefore, it is not suitable for large-capacity, long-term continuous processing and is a structure that needs improvement.

[0015] As another prior art, there is also Patent Document 3 (Korean Patent Registration No. 10-1341136, Real-time Water Quality Management System for Reservoirs or Rivers).

[0016] The feature of the aforementioned patent document 3 is that by conducting real-time and continuous measurements of pollution level information such as the type and concentration of pollution sources inside the reservoir, as well as hydrodynamic information such as water depth, water level, flow velocity, and flow rate, the overall condition of the reservoir can be accurately grasped, and the location of the chemical dosing can be changed in real time accordingly. By centrally deploying the equipment near the pollution source or setting up mutually coordinated layout locations, and implementing differentiated chemical dosing according to different areas, the pollution source can be quickly removed.

[0017] However, Patent Document 3 is limited to the treatment of local pollution. Its ability to treat pollution that occurs at multiple points simultaneously is significantly limited. Moreover, it still has insurmountable limitations, especially in its use of chemical treatment methods. Summary of the Invention

[0018] Technical problems to be solved This invention is proposed based on a full consideration and solution to the various problems existing in the prior art. Its purpose is to provide an improved bubble fountain-type water circulation device that combines a centrifugal pump and a jet pump. The centrifugal pump is used to realize water circulation, while the jet pump is used to draw in air, so that the water in the large-capacity reservoir is circulated in a high oxygen saturation state. This raises the bottom water that is undergoing anaerobic oxidation to the surface, increases the dissolved oxygen content necessary for aerobic microorganisms to carry out self-purification activities, and thus effectively improves the water quality of the reservoir.

[0019] Technical solution To achieve the aforementioned objective, the bubble fountain-type water circulation device of the present invention includes: an intake pipe installed underwater in a reservoir or lake; an impeller connected to the intake pipe; and a distribution disc, through which deep water drawn in by the impeller is mixed with external air and sprayed above the surface water under conditions of increased oxygen saturation.

[0020] At this time, the suction tube can be a bellows-shaped telescopic tube.

[0021] In addition, a support base may be provided at the lower end of the suction tube to maintain a certain height distance between the lower end of the suction tube and the bottom of the reservoir or lake.

[0022] Furthermore, the upper end of the suction pipe is fixed to the main body housing, at least a portion of the impeller is built into the main body housing, and the distribution disc can be fixed to the upper part of the main body housing located above the impeller. Additionally, a fixing frame can be provided at the lower periphery of the main body housing.

[0023] Furthermore, at a portion of the periphery of the main body shell, one end of a fixing rod can be hinged, and a buoyancy body is fixed to the other end of the fixing rod. At a portion of the length of the fixing rod, one end of a turnbuckle is fixed, and the other end is fixed to the upper plate. The upper plate is fixed to the upper end of the vertical frame, and the lower end of the vertical frame is vertically fixed to the fixing frame. Additionally, a fixing plate with a through hole of a certain size can be placed at the upper end of the opening of the main body shell.

[0024] Multiple supports can also be fixed to the vertical frame.

[0025] In addition, at least one steel wire rope may be tied around the periphery of the main body shell, and the ends of the steel wire rope may be fixed with anchors.

[0026] In addition, a fixing plate with a through hole of a certain size is placed at the upper end of the opening of the main body shell. A vertical frame is fixed on the fixing frame, and an upper plate is fixed at the upper end of the vertical frame. A drive motor is fixed on the upper plate. The rotation shaft of the drive motor passes through the upper plate and is coupled to the impeller shaft through a coupling in the space between the upper plate and the fixing plate. The distribution disk is fixed around the through hole formed in the center of the fixing plate, and the impeller shaft passes through the distribution disk and is fixedly connected to the impeller.

[0027] In addition, the lower end of the impeller shaft is fixed to the shaft support fixed under the fixed plate by a bearing. The impeller shaft is fixed at the center of the impeller disk. The shaft support is located inside the main body housing. The impeller disk is inserted into the through hole formed in the center of the distribution disk. Horizontal blades and vertical blades can be formed on the underside of the impeller disk.

[0028] In addition, multiple blades can be formed at intervals along the radial direction on the surface of the impeller disk.

[0029] In addition, multiple guide vanes can be fixedly arranged at certain intervals along the radial direction on the surface of the distribution disk. The upper part of the guide vanes is closed by a vane cover plate, and a through hole for the impeller disk to be inserted can be formed in the center of the vane cover plate.

[0030] Furthermore, the guide vane can be configured to be curved in a clockwise or counterclockwise direction.

[0031] In addition, multiple fixing grooves can be formed on the surface of the blade cover plate along the radial direction, and the upper end of each guide blade is formed with an insertion protrusion to achieve mutual insertion and fixing.

[0032] Furthermore, the through hole formed in the center of the blade cover plate can be set to be larger than the diameter of the impeller disk, thereby forming a gap structure between the two.

[0033] Furthermore, a serrated uneven structure can be formed on the peripheral surface of the distribution disk.

[0034] In addition, multiple suction holes may be further formed on the blade cover plate in the radial direction corresponding to the guide blade.

[0035] Furthermore, the intake hole can be formed into a rectangular structure, with only three sides cut off, and the remaining side still connected to the blade cover plate, and formed in a downward sloping structure.

[0036] Beneficial effects According to the present invention, the following effects can be obtained.

[0037] First, the anaerobic bottom water is lifted to the surface by the vertical blades of a centrifugal pump operating at 1,760 RPM, thereby increasing the dissolved oxygen content necessary for aerobic microorganisms to carry out self-purification activities.

[0038] Secondly, the horizontal blades of the centrifugal pump are used to achieve water circulation, while the pressure difference generated by the high-speed flow is used to perform the function of a jet pump to draw in air, so that the water in the large-capacity reservoir circulates in a high oxygen saturation state, thereby effectively improving the water quality of the reservoir.

[0039] Third, circulating large volumes of water by drawing in air and aerating it helps achieve rapid self-cleaning and significantly improves water quality.

[0040] Fourth, the visual effect of a fountain show is achieved by spraying water in a fountain shape along the radial direction. Attached Figure Description

[0041] Figure 1 This is a schematic cross-sectional view of the device according to the present invention.

[0042] Figure 2 This is a schematic plan view of the device according to the present invention.

[0043] Figure 3a and Figure 3b This is a schematic diagram showing the distribution disk and impeller structure that constitute the device of the present invention.

[0044] Figure 4a and Figure 4b This is a schematic diagram showing the distribution disk and impeller structure that constitute the device of the present invention.

[0045] Figure 5 This is a schematic diagram of the impeller constituting the device of the present invention.

[0046] Figure 6 and Figure 7 This is a schematic diagram used to illustrate the fluid flow state of the distribution disc and impeller shown in Figure 3 during operation.

[0047] Figure 8a , Figure 8b and Figure 8c This is a schematic diagram illustrating another embodiment of the distribution disk and impeller structure constituting the device of the present invention.

[0048] Figure 9 This is a schematic diagram used to illustrate the fluid flow state of the distribution disc and impeller shown in Figure 8 during operation. Detailed Implementation

[0049] The preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings.

[0050] Before describing the present invention, it should be noted that the following description of specific structures or functions is only for the purpose of illustrating embodiments based on the concept of the present invention. Embodiments under the concept of the present invention can be implemented in various forms and should not be construed as limited to the embodiments described in this specification.

[0051] Furthermore, embodiments based on the concept of the present invention can be varied and have multiple shapes; therefore, several specific embodiments will be illustrated with reference to the accompanying drawings and described in detail in this specification. However, this is not intended to limit embodiments based on the concept of the present invention to specific disclosed shapes, but should be understood to include all modifications, equivalents, and substitutions falling within the spirit and technical scope of the present invention.

[0052] The bubble fountain-type water circulation device according to the present invention is a device that raises the anaerobic bottom water to the surface by using an impeller rotating at a high speed of 1,760 RPM, thereby increasing the dissolved oxygen content necessary for aerobic microorganisms to carry out self-cleaning activities.

[0053] In particular, the present invention is a structure that combines the functions of a centrifugal pump and a jet pump. It utilizes the centrifugal pump function to achieve water circulation, and at the same time uses the jet pump function to draw in air, so that the water in a large-capacity reservoir circulates in a high-oxygen saturation state, thereby effectively improving the water quality of the reservoir.

[0054] That is, the oxygen-deficient bottom water is lifted to the surface through a 3-10m flexible suction hose made of polyurethane material by a centrifugal pump, and air is drawn in through the suction port by the jet pump effect generated by the high-speed flow at the centrifugal pump outlet, increasing the oxygen saturation without the need for an external independent air supply device, and spraying it in a fountain shape.

[0055] Here, the centrifugal pump is a pump that imparts rotational kinetic energy to a liquid by driving the impeller to rotate and uses the resulting centrifugal force to transport the liquid. The liquid that enters the center of the impeller through the suction pipe gains rotational kinetic energy and increases in pressure as it passes between the vanes, and is then ejected radially under the action of this rotational force.

[0056] In addition, the jet pump consists of a working nozzle connected to the diffuser and a mixing chamber. The working nozzle and the diffuser form a special fluid flow channel with various cross-sectional shapes. The working fluid is ejected from the nozzle at high pressure and high speed. During the ejection process, the fluid converts static pressure energy into kinetic energy as it passes through the nozzle.

[0057] This invention combines the impeller of the centrifugal pump with the diffuser of the jet pump, giving it high jetting force and forming a jet pattern that sprays along the radial direction, thus presenting an overall jetting effect similar to a fountain performance.

[0058] Moreover, by spraying water in a bubble fountain-like manner and atomizing it, this invention significantly expands the contact area between water and oxygen, thereby dramatically increasing oxygen saturation. Furthermore, and most importantly, the drive system does not employ a difficult-to-maintain reducer, but directly implements the drive structure, thus possessing the significant advantage of long-term trouble-free operation.

[0059] That is, the bubble fountain-type water circulation device according to the present invention includes: a suction pipe installed underwater in a reservoir or lake, an impeller connected to the suction pipe, and a distribution plate that discharges the deep water sucked in by the impeller in the radial direction; the deep water sucked in by the impeller is mixed with the outside air through the distribution plate and sprayed above the surface water in a state of increased oxygen saturation.

[0060] More specifically, such as Figure 1 and Figure 2As shown, the bubble fountain-type water circulation device according to the present invention includes an intake pipe 100.

[0061] The suction pipe 100 is installed in the water of a reservoir or lake.

[0062] That is, the suction tube is configured to draw in deep water and spray the drawn-in deep water above the surface water.

[0063] Deep water with a lower dissolved oxygen content compared to surface water is pumped up and exposed to air over the largest possible area to increase oxygen saturation.

[0064] Therefore, under conditions of high oxygen saturation, the water in reservoirs or lakes can be fully mixed, increasing the dissolved oxygen content in deep water, thereby preventing eutrophication, inhibiting water decay, and eliminating or preventing pollution.

[0065] Furthermore, the suction pipe 100 is preferably configured as a bellows (also known as a "telescopic pipe") shape, with an adjustable length and the ability to deform with the water flow to minimize flow resistance.

[0066] In particular, the inhalation tube 100 can be a telescopic tube made of polyurethane material, with a length of approximately 3 to 10 m.

[0067] In addition, a support base 110 is fixedly provided at the lower end of the inhalation tube 100.

[0068] The support base 110 is used to maintain a certain height distance between the lower end of the suction pipe 100 and the bottom surface of the reservoir or lake.

[0069] The reason for setting up the support base 110 is that the bottom surface of reservoirs or lakes is usually composed of mud or silt layers. If the lower end of the suction pipe 100 is sunk into the silt layer, it will not be able to effectively suck in and lift deep water.

[0070] On the other hand, the upper end of the inhalation tube 100 is fixed to the main body housing 200.

[0071] Furthermore, a fixing frame 210 is provided at the lower periphery of the main body housing 200.

[0072] At this time, the fixed frame 210 does not need to be limited to a specific shape, but it can preferably be triangular in structure and fixedly installed on the periphery of the main body shell 200.

[0073] In addition, a vertical frame 270 is also vertically fixed on the fixed frame 210, and a plurality of legs 220 are fixedly fixed on the vertical frame 270.

[0074] The support leg 220 is used to maintain a certain height gap between the main body housing 200 and the ground when the main body housing 200 is placed on the ground, so as to ensure space and facilitate installation.

[0075] Preferably, although the support leg 220 does not need to be specifically limited, it is configured as a tripod-type three-support structure according to the shape of the fixed frame 210.

[0076] Additionally, at a portion of the periphery of the main body shell 200, one end of the fixing rod 230 is fixed in a hinged manner, and the other end of the fixing rod 230 is fixed with a buoyancy body 240.

[0077] In this case, the buoyancy body 240 is preferably a float, and as shown in the example figure, it is particularly preferred that three are arranged at 120° intervals from each other.

[0078] Furthermore, turnbuckles 250 are fixedly installed at a portion of the length of the fixed rod 230. By tightening or loosening the turnbuckles 250, the fixed rod 230 can be in an upright or laid-down state.

[0079] This is to adjust the sinking depth of the main body shell 200 by adjusting the floating position of the buoyant body 240 on the water surface.

[0080] Here, the other end of the turnbuckle 250 is fixed to the upper plate 260, and the upper plate 260 is fixed to the upper end of the vertical frame 270.

[0081] In addition, the lower end of the vertical frame 270 is vertically fixed to the fixed frame 210.

[0082] In addition, a fixing plate 280 with a through hole of a certain size is placed and fixed at the upper end of the opening of the main body shell 200.

[0083] At this time, the shape of the fixing plate 280 does not need to be particularly limited, but it is preferable to form a triangular structure with the upper plate 260 that corresponds to the shape of the fixing frame 210, with each vertex firmly fixed to the vertical frame 270.

[0084] Furthermore, at least one steel wire 120 is bound to the fixing plate 280, and the end of the steel wire 120 is fixed with an anchor 130. By anchoring the anchor 130 to the bottom of the reservoir or lake, the main body shell 200 is prevented from floating randomly, so that it can be stably moored in the designated position.

[0085] Additionally, a drive motor 290 is fixed on the upper plate 260. The rotation shaft of the drive motor 290 passes vertically through the upper plate 260 and is exposed in the space between the upper plate 260 and the fixed plate 280. In this space, it is connected to the impeller shaft 410 through a coupling 292.

[0086] Furthermore, a distribution disc 300 is fixed around the through hole formed in the center of the fixing plate 280 to form an integral structure.

[0087] Then, the impeller shaft 410 passes through the distribution disc 300 and is installed inside the main body housing 200, and is fixedly connected to the impeller 400, which is at least partially disposed inside the main body housing 200.

[0088] Therefore, as the impeller 400 rotates, the deep water drawn in through the suction pipe 100 installed underwater in the reservoir or lake is sprayed and dispersed in a radial direction by the distribution plate 300, and its oxygen saturation is increased during contact with the outside air.

[0089] Furthermore, as this process is repeated, deep water mixes with surface water, increasing the dissolved oxygen content in the water, thereby preventing eutrophication of reservoirs or lakes and inhibiting pollution.

[0090] On the other hand, as shown in Figure 3 to Figure 5 In the embodiment shown, the impeller 400 has the following structure: the lower end of the impeller shaft 410 is fixed to the shaft support 282 fixed below the fixed plate 280 by a bearing; the impeller shaft 410 is fixed to the center of the impeller plate 420; and the shaft support 282 is disposed inside the main body housing 200.

[0091] At this time, the impeller plate 420 is inserted into the through hole formed in the center of the distribution plate 300, and horizontal blades 430 and vertical blades 440 are formed on the underside of the impeller plate 420.

[0092] The vertical blade 440 provides an attractive force in the vertical direction, thereby drawing water from the lower layer upwards, while the horizontal blade 430, while rotating clockwise, provides a jetting force to expel water in the radial direction by increasing the head difference of the drawn-in water.

[0093] Therefore, the horizontal blades 430 are arranged in a spiral in a clockwise direction with the impeller shaft 410 as the center, and the vertical blades 440 extend vertically downward relative to the impeller plate 420 for a certain length, with an inclined structure at the end and a blade plate attached.

[0094] This creates a pressure difference during rotation, which attracts and lifts the deep water upwards.

[0095] In addition, multiple guide vanes 310 are fixedly arranged at certain intervals along the radial direction on the surface of the distribution plate 300.

[0096] The guide vane 310 is used to allow the deep water discharged from the horizontal vane 430 to spread smoothly in the radial direction. To allow the deep water discharged from the horizontal vane 430 to flow naturally into the guide vane, it is bent along the discharge direction of the horizontal vane 430. However, in the example of the present invention, as shown in the figure, the guide vane is bent in a counterclockwise direction.

[0097] When the horizontal blades 430 constituting the impeller 400 rotate clockwise and disperse deep water, guide blades 310 must be provided. The reason is that since the body is floating in the water, if water is discharged in the circumferential direction through the horizontal blades 430, the reaction force of the discharged water will cause the body to rotate in the opposite direction to the discharge direction. However, by discharging deep water in the radial direction through the guide blades 310, this rotational force can be eliminated, so that the equipment does not rotate and remains stable. In addition, since the rotational energy is converted into discharge energy, water can be dispersed at a higher pressure, thereby achieving a waterfall-type or aeration-type fountain effect.

[0098] In addition, in order to achieve the effect of the guide vane 310 in dispersing deep water, the upper part of the guide vane 310 must be in a sealed state, and this sealed structure is achieved by the blade cover plate 320.

[0099] The blade cover plate 320 is a disc-shaped component with a through hole in the center, and is fixedly installed on the upper part of the guide blade 310.

[0100] To facilitate the fixing of the blade cover plate 320, a plurality of fixing grooves 322 are provided on the surface of the blade cover plate 320 along the radial direction, and an insertion protrusion 312 is formed on the upper end of the guide blade 310, which is inserted and fixed in the corresponding fixing groove 322.

[0101] In particular, the through hole formed in the center of the blade cover plate 320 should be set to be larger than the diameter of the impeller plate 420, thereby forming a gap G between the two.

[0102] This is an extremely important structural element that introduces external air during the deep water dispersion process, thereby increasing oxygen saturation.

[0103] For example, according to Figure 6 and Figure 7 As shown, when deep water is drawn in and discharged laterally, i.e. radially, along the guide vane 310, external air is drawn in through the gap G between the blade cover plate 320 and the impeller plate 420 and mixes with the discharged deep water. During this process, the oxygen saturation of the discharged deep water is increased.

[0104] Furthermore, when deep water leaves the guide vane 310 and disperses into the air, due to complete scattering, its contact area with the air increases geometrically, thereby causing the oxygen saturation to rise sharply.

[0105] Furthermore, the introduction of external air enhances the foaming effect, thereby further strengthening the power to expel and disperse the air at a higher speed.

[0106] On the other hand, in order to further enhance the above effects, the structure of the distribution plate 300 and the blade cover plate 320 can be improved.

[0107] As shown in Figure 8 and Figure 9 As shown, a serrated surface 330 can be formed on the peripheral surface of the distribution disk 300.

[0108] The multi-layered structure of the micro-serrations atomizes the discharged and dispersed water, thereby further increasing its contact area with the air and promoting oxygen saturation.

[0109] In addition, multiple blades 422 can be arranged at intervals along the radial direction on the upper surface of the impeller plate 420.

[0110] Blade 422 enhances exhaust capacity by accelerating the flow of air above it and increasing the amount of air mixed in.

[0111] In addition, multiple suction holes 324 can be further formed on the blade cover plate 320 along the radial direction corresponding to the guide blade 310.

[0112] The intake port 324 is used to achieve the same effect as the aforementioned gap G, and to further enhance its performance.

[0113] At this point, the suction hole 324 can be formed into a rectangular structure, in which only three sides are cut off, and the remaining side is still connected to the blade cover plate 320, forming a downwardly inclined and pressed structure.

[0114] This structure can prevent water from spraying upwards while allowing air to be drawn in more easily and quickly through the Venturi effect.

[0115] This further enhances the air intake effect.

[0116] As described above, this invention combines a centrifugal pump with a jet pump, using the centrifugal pump to achieve water circulation and simultaneously using the jet pump to draw in air, allowing the water in a large-capacity reservoir to circulate under high oxygen saturation conditions. This raises the anaerobic bottom water to the surface, increasing the dissolved oxygen content required for the self-purification activities of aerobic microorganisms, thereby effectively improving the water quality of the reservoir.

Claims

1. A bubble fountain type water circulating device, characterized by, Comprising: a suction pipe arranged in the water of a reservoir or lake; a impeller connected to the suction pipe; and a distribution disc for discharging deep water sucked by the impeller in a radial direction, the deep water sucked by the impeller is mixed with external air through the distribution disc and is sprayed to the upper part of the surface water in a state of increased oxygen saturation.

2. The bubble fountain type water circulation device according to claim 1, wherein the suction pipe is a bellows-shaped telescopic pipe.

3. The bubble fountain type water circulation device according to claim 1, wherein the lower end of the suction pipe is further provided with a support seat for separating the lower end of the suction pipe from the bottom surface of the reservoir or lake by a certain height.

4. The bubble fountain type water circulation device according to claim 1, wherein the upper end of the suction pipe is fixed to a body shell, at least a part of the impeller is arranged inside the body shell, and the distribution disc is fixedly arranged at the upper part of the body shell.

5. The bubble fountain type water circulation device according to claim 4, wherein the lower end of the body shell is provided with a fixed frame, a vertical frame is vertically fixedly arranged on the fixed frame, and a plurality of supporting legs are fixedly arranged on the vertical frame.

6. The bubble fountain type water circulation device according to claim 5, wherein one end of a fixed rod is fixed in a hinged manner at the position of the peripheral part of the body shell, the other end of the fixed rod is fixedly provided with a buoyancy body, one end of a basket screw is fixedly arranged at a part position in the length direction of the fixed rod, the other end of the basket screw is fixed to an upper plate, the upper plate is fixed to the upper end of the vertical frame, the lower end of the vertical frame is vertically fixed to the fixed frame, and a fixed plate with a certain size hole is arranged at the open upper end of the body shell.

7. The bubble fountain type water circulation device according to claim 5, wherein a fixed plate with a certain size hole is arranged at the open upper end of the body shell, a vertical frame is fixedly arranged on the fixed frame, an upper plate is fixed to the upper end of the vertical frame, a driving motor is fixedly arranged on the upper surface of the upper plate, the rotating shaft of the driving motor penetrates the upper plate and is coupled with an impeller shaft through a shaft coupling in the space between the upper plate and the fixed plate, the peripheral part of the hole formed in the center of the fixed plate is fixedly provided with a distribution disc, and the impeller shaft penetrates the distribution disc and is fixed with the impeller.

8. The bubble fountain type water circulation device according to claim 7, wherein more than one steel wire rope is arranged on the fixed plate, and the end of the steel wire rope is fixedly provided with an anchor body.

9. The bubble fountain type water circulation device according to claim 1, wherein the lower end of the impeller shaft is fixed to a shaft support frame fixed below the fixed plate through a bearing, the impeller shaft is fixed to the center of an impeller disc, the shaft support frame is arranged inside the body shell, the impeller disc is inserted into the hole formed in the center of the distribution disc, and horizontal blades and vertical blades are formed on the lower surface of the impeller disc. A plurality of blades are arranged in a radial direction on the upper surface of the impeller disc. ​ ​ ​ ​ ​ ​ ​ ​ 10. The bubbling fountain water circulation device of claim 9, wherein, ​ 11. The bubble fountain type water circulating device according to claim 1, wherein a plurality of guide vanes are fixedly provided at intervals in a radial direction on the surface of the distribution disc, and the upper portions of the guide vanes are closed by a vane cover plate, and a hole for inserting the impeller disc is formed in the center of the vane cover plate. The guide vanes are formed to be curved in a clockwise direction or in a counterclockwise direction.

12. The bubbling fountain water circulation device of claim 11, wherein, 13. The bubble fountain type water circulating device according to claim 11, wherein a plurality of fixing grooves are formed in a radial direction on the surface of the vane cover plate, and the upper ends of the guide vanes are respectively provided with insertion protrusions which are inserted and fixed in the fixing grooves.

14. The bubble fountain type water circulating device according to claim 11, wherein the diameter of the hole formed in the center of the vane cover plate is greater than the diameter of the impeller disc, so that a gap is formed between the vane cover plate and the impeller disc.

15. The bubble fountain type water circulating device according to claim 11, wherein a zigzag concave-convex is formed on the peripheral surface of the distribution disc.

16. The bubble fountain type water circulating device according to claim 11, wherein a plurality of suction holes are further formed in a radial direction on the vane cover plate at positions corresponding to the guide vanes.

17. The bubble fountain type water circulating device according to claim 16, wherein the suction holes are formed in a rectangular shape in which only three sides are cut, and the remaining one side is connected to the vane cover plate, and a downwardly inclined structure is formed. ​ ​ ​ ​ ​ ​

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