A Deep-Water Induced Circulation Aerator and a Water Body Restoration and Maintenance Platform

Abstract

The present invention discloses a deep - water induced circulation aerator. By injecting air and mixing it with water, a gas - water mixed circulating water containing a large number of fine air bubbles is formed. The density difference between the circulating water and the external water body can lift the water at the bottom of the water body to the water surface for aeration, and can also aerate the water body during the water body circulation process, achieving secondary aeration. An air outlet conversion device for deep and shallow water is added in the air cavity. When deep - water aeration cannot be carried out due to insufficient energy of the air - blowing power device, it can still aerate the water body and can also push the deep - water induced circulation aerator or its carrier to move. The present invention also discloses a water body restoration and maintenance platform. A deep - water induced circulation aerator, a photovoltaic power supply module, a blower, a waterproof control box and a wind power supply module are arranged on the floating platform. The platform uses modular detachable equipment, is not restricted by the environment, and is powered by a photovoltaic power source and / or a wind power source, enabling the equipment to operate self - sustainably for water body restoration in remote environments.

Description

Technical Field

[0001] The present invention relates to the field of environmental protection sewage treatment, and particularly to a deep water induced circulation aerator and a water body restoration and maintenance platform. Background Art

[0002] Pollutants entering the water body are generally divided into human-discharged pollutants, such as domestic sewage of surrounding residents, industrial wastewater of enterprises, etc., and also include naturally formed pollutants, such as initial rainwater with a high degree of pollution, surrounding grass and leaves, corpses of insects, etc. Among them, human-discharged pollutants are the main pollution sources, and blocking human pollution sources is the most important treatment means for black and odorous water bodies.

[0003] On the premise of blocking human-discharged pollutants, as long as there is enough dissolved oxygen in the water, a complete microbial chain can be gradually formed in the water body, and it has a certain self-purification ability. Therefore, when the self-purification effect exists and the ability is sufficient, the water body basically will not turn black and stinky.

[0004] Under normal natural conditions, the water body basically relies on the contact between the water surface and the air to absorb oxygen in the air. However, at this time, most of the oxygen only dissolves and exists in the upper layer of the water body, and there is still a lack of dissolved oxygen in the bottom layer of the water body.

[0005] At present, the equipment for restoring water bodies or aerating in water bodies is limited by environmental factors. For example, the location of the water body to be restored is relatively remote, the transportation is inconvenient, and the facilities are not easy to transport; there is no suitable power source nearby, the distance of power supply is too far, and the loss is large; the service area of the device is small, the diffusion range of dissolved oxygen is insufficient, and the power efficiency is not high. These factors lead to the inability of conventional aeration devices to effectively and flexibly repair water bodies. Summary of the Invention

[0006] The purpose of the present invention is to provide a deep water induced circulation aerator, which introduces circulating water and air at the bottom of the water body for mixing and aeration, and then lifts it to the water surface for circulating aeration, so as to solve the problems existing in the above-mentioned prior art, increase the dissolved oxygen in the bottom layer of the water body, and then repair the water body.

[0007] To achieve the above purpose, the present invention provides the following solutions:

[0008] The present invention provides a deep - water induced circulation aerator, which includes an inner draft tube, an outer draft tube, an air inlet and a water circulation inlet. The inner draft tube is nested inside the outer draft tube, and the top of the inner draft tube is higher than the top of the outer draft tube. The air inlet is arranged at the top of the inner draft tube. The bottom of the inner draft tube is closed, and a plurality of deep - water air holes are formed on the outer wall. The bottom of the outer draft tube is closed and provided with the water circulation inlet. A cutting body is arranged at intervals between the outer wall of the inner draft tube and the inner wall of the outer draft tube. The water circulation inlet is connected with a circulating drainage pipe, and the free end of the circulating drainage pipe extends to the bottom of the water body.

[0009] Optionally, a water baffle is arranged at the top of the inner draft tube. The water baffle is an annular water baffle. The outer diameter of the water baffle is larger than the outer diameter of the outer draft tube. The air inlet is arranged in the middle of the water baffle. The air inlet is communicated with the air cavity of the inner draft tube, and the air cavity is communicated with the deep - water air holes.

[0010] Optionally, a flow - guiding cone is arranged at the bottom of the inner draft tube. The tip of the flow - guiding cone extends into the water circulation inlet. The inner diameter of the water circulation inlet is smaller than the bottom outer diameter of the flow - guiding cone. The deep - water air holes are arranged on the upper part of the flow - guiding cone. The deep - water air holes are evenly distributed along the radial direction of the inner draft tube. The top of the outer draft tube is flush with the water level line of the water body.

[0011] Optionally, the cutting body is horizontally arranged between the deep - water air holes and the top of the outer draft tube. The cross - section of the cutting body is a triangular cross - section. The cutting body is annularly arranged on the inner wall of the outer draft tube and the outer wall of the inner draft tube. A bent air - water mixing cavity is formed between the spaced - apart cutting bodies;

[0012] The sharp corners of the cutting bodies arranged on the inner wall of the outer draft tube face the outer wall of the inner draft tube, and the sharp corners of the cutting bodies arranged on the outer wall of the inner draft tube face the inner wall of the outer draft tube. The sharp corners of the adjacent and spaced - apart cutting bodies are cross - arranged in the vertical direction.

[0013] Optionally, it further includes a deep - and - shallow air - outlet conversion device. The deep - and - shallow air - outlet conversion device is arranged in the air cavity of the inner draft tube. A shallow - water air pipe is arranged on the side of the deep - and - shallow air - outlet conversion device. The deep - and - shallow air - outlet conversion device includes a reversing pipe, a flow - limiting cone, a floating counterweight and a balancing float. A reversing conical pipe is arranged at the top of the reversing pipe. The flow - limiting cone is arranged in the reversing conical pipe. The top of the flow - limiting cone is connected with the floating counterweight through a U - shaped connecting rod. The bottom of the flow - limiting cone is connected with the balancing float arranged in the reversing pipe through a straight connecting rod. The mass and volume of the floating counterweight are both larger than those of the balancing float.

[0014] Optionally, the top of the commutation conical tube is not lower than the normal water level line, the top of the floating counterweight is not higher than the liquid level of the shallow water air outlet, and the tip of the flow-limiting cone is vertically downward in the commutation conical tube;

[0015] One end of the shallow water air outlet pipe is communicated with the commutation pipe, and the other end of the shallow water air outlet pipe penetrates through the inner diversion cylinder and the outer diversion cylinder in the radial direction and extends to the outside of the outer diversion cylinder.

[0016] Another object of the present invention is to provide a water body restoration and maintenance platform, which adopts a combined detachable device, is not restricted by the environment, and is powered by a photovoltaic power source and / or a wind power source to solve the problems existing in the above-mentioned prior art, so that the device can operate self-sufficiently and carry out water body restoration in remote environments.

[0017] To achieve the above object, the present invention provides the following solutions:

[0018] The present invention provides a water body restoration and maintenance platform, including a deep water induction circulation aerator. Among them, the deep water induction circulation aerator is arranged in the middle of the floating body platform, the floating body platform is evenly provided with a photovoltaic power supply module, a blower is arranged above the deep water induction circulation aerator, the blower is fixed on the upper part of the floating body platform, and a waterproof control box is arranged behind the blower, and a wind power supply module is arranged above the waterproof control box.

[0019] Optionally, the floating body platform includes a plurality of unit floating boxes, a fiberglass grid board, a first transverse connecting piece, a second transverse connecting piece, a first longitudinal connecting piece, a second longitudinal connecting piece and an end connecting piece. The unit floating boxes are cylindrical floating boxes. The two ends of axially adjacent unit floating boxes are fixedly connected by end connecting pieces, the two sides of axially adjacent unit floating boxes are fixedly connected by a first longitudinal connecting piece and a second longitudinal connecting piece, and the parallel adjacent unit floating boxes are fixedly connected by a first transverse connecting piece and a second transverse connecting piece. The length of the first transverse connecting piece is greater than the length of the second transverse connecting piece, and the fiberglass grid board is fixedly laid on the first transverse connecting piece.

[0020] Optionally, the first longitudinal connecting piece is arranged on the upper part of the unit floating box and fixedly installed on the end connecting piece, and the second longitudinal connecting piece is arranged on the lower part of the unit floating box and fixedly installed on the end connecting piece;

[0021] The first transverse connecting piece is arranged on the upper part of the unit floating box and fixedly installed on the first longitudinal connecting piece, the second transverse connecting piece is arranged on the lower part of the unit floating box and fixedly installed on the second longitudinal connecting piece. The length of the floating body platform can be increased by axially connecting the end connecting pieces of the unit floating boxes, and the width of the floating body platform can be increased by arranging multiple columns of the unit floating boxes.

[0022] Optionally, the photovoltaic power supply module includes a rechargeable battery pack and a solar panel. The solar panel is arranged in a ring on the fiberglass grid board. The rechargeable battery pack is arranged below the solar panel. The blower, the waterproof control box and the wind power supply module are sequentially arranged in the middle of the annular solar panel;

[0023] The wind power supply module includes a wind turbine support column and a wind turbine arranged on the wind turbine support column. The air outlet of the blower is communicated with the air inlet of the deep water induced circulation aerator. The waterproof control box is used to control the wind power supply module and the photovoltaic power supply module to supply energy to the blower.

[0024] The present invention has achieved the following technical effects compared with the prior art:

[0025] 1. The deep water induced circulation aerator provided by the present invention forms a gas-water mixed circulating water containing a large number of fine air bubbles by blowing air and mixing it with water. Due to the density difference between the circulating water and the external water body, a water circulation power is formed, which can not only lift the water at the bottom of the water body to the water surface for oxygenation, but also oxygenate the water body during the water body circulation process, realizing secondary oxygenation.

[0026] 2. The deep water induced circulation aerator provided by the present invention is provided with a deep and shallow air outlet conversion device in the air cavity. When the deep water oxygenation cannot be carried out due to insufficient energy of the air blowing power device, it can still oxygenate the water body, and can also push the deep water induced circulation aerator or its vehicle to move, thus avoiding the situation that the energy is exhausted, the deep water induced circulation aerator cannot work and cannot be salvaged, enabling the water body restoration to continue without stopping oxygenation, and also increasing the flexibility of the deep water induced circulation aerator.

[0027] 3. The water body restoration maintenance platform provided by the present invention is provided with a deep water induced circulation aerator in the middle of the floating body platform. The floating body platform is evenly provided with a photovoltaic power supply module. A blower is arranged above the deep water induced circulation aerator. The blower is fixed on the upper part of the floating body platform. A waterproof control box is arranged behind the blower. A wind power supply module is arranged above the waterproof control box. The combined detachable equipment is not restricted by the environment and is powered by a photovoltaic power source and / or a wind power source, enabling the equipment to operate self-sufficiently for water body restoration in a remote environment. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0029] Figure 1 Structural schematic diagram of the deep - water induced circulation aerator of the present invention;

[0030] Figure 2 Structural schematic diagram of the deep - water induced circulation aerator of the present invention working in shallow water;

[0031] Figure 3 Schematic diagram of the deep - and - shallow air outlet conversion device of the deep - water induced circulation aerator of the present invention;

[0032] Figure 4 Transverse sectional view of the water body restoration and maintenance platform of the present invention;

[0033] Figure 5 Connection schematic diagram of the floating platform of the water body restoration and maintenance platform of the present invention;

[0034] Figure 6 Structural schematic diagram of the unit floating box of the water body restoration and maintenance platform of the present invention;

[0035] Figure 7 Longitudinal sectional view of the water body restoration and maintenance platform of the present invention;

[0036] Figure 8 Schematic diagram of the layout of the photovoltaic power supply module of the water body restoration and maintenance platform of the present invention;

[0037] Figure 9 Schematic diagram of the layout of the rechargeable battery pack of the water body restoration and maintenance platform of the present invention;

[0038] Among them, the reference numerals are:

[0039] 100, deep - water induced circulation aerator;

[0040] 1, air inlet;

[0041] 2, water baffle;

[0042] 3, inner draft tube;

[0043] 4, draft cone;

[0044] 5, air chamber;

[0045] 6, deep - water air outlet;

[0046] 7, outer draft tube;

[0047] 8. Cutting body;

[0048] 9. Air-water mixing chamber;

[0049] 10. Water circulation inlet;

[0050] 11. Circulating drainage pipe;

[0051] 12. Deep and shallow air outlet conversion device; 121. Commutating pipe; 122. Commutating conical pipe; 123. Flow-limiting cone; 124. U-shaped connecting rod; 125. Floating counterweight; 126. Balancing floating block; 127. Straight connecting rod;

[0052] 13. Shallow water outlet pipe;

[0053] 200. Floating body platform;

[0054] 201. Unit floating box; 202. End connector; 203. First transverse connector; 204. Second transverse connector; 205. First longitudinal connector; 206. Second longitudinal connector; 207. Fiberglass grid board;

[0055] 300. Blower;

[0056] 400. Photovoltaic power supply module; 401. Rechargeable battery pack; 402. Solar panel;

[0057] 500. Waterproof control box;

[0058] 600. Wind power supply module; 601. Wind turbine support pillar. Detailed implementation manners

[0059] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0060] The object of the present invention is to provide a deep water induced circulation aerator, which introduces circulating water and air mixture at the bottom of the water body for oxygenation and raises it to the water surface for circulating oxygenation, so as to solve the problems existing in the above-mentioned prior art, increase the dissolved oxygen in the bottom layer of the water body, and further repair the water body.

[0061] Another object of the present invention is to provide a water body repair and maintenance platform, which adopts a combined and detachable device, is not restricted by the environment, and is powered by a photovoltaic power source and / or a wind power source, so as to solve the problems existing in the above-mentioned prior art, and enable the device to operate self-sufficiently for water body repair in remote environments.

[0062] To make the above objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Embodiment

[0063] As Figure 1 shown, this embodiment provides a deep - water induced circulation aerator 100, which introduces circulating water and air mixture at the bottom of the water body for oxygenation and then lifts it to the water surface for circulating oxygenation to solve the problems existing in the above - mentioned prior art, increase the dissolved oxygen in the bottom layer of the water body, and further repair the water body.

[0064] As Figure 1 shown, a deep - water induced circulation aerator 100 of this embodiment includes an inner guide cylinder 3, an outer guide cylinder 7, an air inlet 1, and a water circulation inlet 10. The inner guide cylinder 3 is coaxially and annularly nested inside the outer guide cylinder 7, and the top of the inner guide cylinder 3 is higher than the top of the outer guide cylinder 7. The air inlet 1 is arranged at the top of the inner guide cylinder 3. The bottom of the inner guide cylinder 3 is closed and provided with a guide cone 4. There are 10 deep - water air outlets 6 opened on the outer wall of the inner guide cylinder 3 above the guide cone 4. The deep - water air outlets 6 are evenly distributed along the radial direction of the inner guide cylinder 3. The bottom of the outer guide cylinder 7 is closed and provided with a water circulation inlet 10. The water circulation inlet 10 is connected with a circulation diversion pipe 11. The free end of the circulation diversion pipe 11 extends to the bottom of the water body. In this way, the water body at the bottom of the water body can enter the water circulation inlet 10 through the circulation diversion pipe 11. After entering the water circulation inlet, it enters the space between the inner guide cylinder 3 and the outer guide cylinder 7 through the diversion of the guide cone 4, and then flows out through the top of the outer guide cylinder 7.

[0065] The deep - water induced circulation aerator 100 of this embodiment needs to be placed below the water level. In this way, water will enter the inner draft tube 3 and the outer draft tube 7 through the water circulation inlet 10 and the deep - water air outlet 6. Since the top of the outer draft tube 7 is not lower than the normal water level line, the water surface will not enter it through the outer draft tube 7. To increase the deep - water induction ability, an air inlet 1 is provided at the top of the inner draft tube 3 above the outer draft tube 7. After the air inlet 1 blows in air, due to the pressure of the air, the water in the air chamber 5 of the inner draft tube 3 is compressed out into the outer draft tube 7. Subsequently, the air enters the space between the outer draft tube 7 and the inner draft tube 3 through the deep - water air outlet 6. In this way, air - water mixture forms circulating water. Since the circulating water contains a large number of fine air bubbles, the overall density of the circulating water decreases, while the external water body still has the density of conventional water. Therefore, a density difference between the inside and the outside is formed, and this density difference between the inside and the outside exactly forms the driving force for the water body circulation. The circulating power formed by this density difference further draws the water at the bottom of the distal end of the water body into the space between the inner draft tube 3 and the outer draft tube 7 through the circulating drainage pipe 11 at the bottom of the deep - water induced circulation aerator 100 and lifts it to the water surface. In this way, the circulating water can flow out through the top of the outer draft tube 7, forming an uninterrupted circulation process in the water body area of the deep - water induced circulation aerator 100.

[0066] Due to the gushing of the circulating water, to prevent the circulating water from rising too high, a water baffle 2 is provided at the top of the inner draft tube 3. The water baffle 2 of this embodiment is an annular water baffle 2. Since the outer diameter of the water baffle 2 is larger than the outer diameter of the outer draft tube 7, the circulating water flows into the water surface through the blockage of the water baffle 2, preventing water from entering the upper area of the air inlet 1, thus affecting the air - blowing power device of the air inlet 1. The air inlet 1 of this embodiment is specifically arranged in the middle of the water baffle 2. The air inlet 1 is communicated with the air chamber 5 of the inner draft tube 3, and the air chamber 5 is communicated with the deep - water air outlet 6. Through the continuous air - blowing of the external air - blowing power device through the air inlet 1, the above - mentioned deep - water induced circulation is realized.

[0067] In this embodiment, in order to enhance the water-gas mixing effect of the circulating water, a cutting body 8 is arranged at intervals between the outer wall of the inner draft tube 3 and the inner wall of the outer draft tube 7. The cutting body 8 is horizontally arranged between the deep water air outlet 6 and the top of the outer draft tube 7. The cross-section of the cutting body 8 in this embodiment is a triangular cross-section. The cutting body 8 is annularly arranged on the inner wall of the outer draft tube 7 and the outer wall of the inner draft tube 3. A bent water-gas mixing chamber 9 is formed between adjacent cutting bodies 8. The water-gas mixing chamber 9 is arranged between the inner draft tube 3 and the outer draft tube 7 and forms a continuously bent annular flow channel through the cutting body 8. Since the sharp corners of the cutting body 8 arranged on the inner wall of the outer draft tube 7 face the outer wall of the inner draft tube 3, and the sharp corners of the cutting body 8 arranged on the outer wall of the inner draft tube 3 face the inner wall of the outer draft tube 7, the sharp corners of adjacent cutting bodies 8 arranged at intervals are cross-arranged in the vertical direction. In this way, the water enters the first mixing through the deep water air outlet 6 and the water body, and then after passing through the water-gas mixing chamber 9 of the cutting body 8, the flow direction is continuously cut and converted to generate more fine bubbles, increasing the contact area between the gas and water phases and the renewal frequency of the gas-liquid contact surface. It can not only improve the oxygen content of the water body mixing, but also further reduce the water body density through more fine bubbles, increasing the mass transfer driving force of the circulating water, thereby increasing the circulating flow rate of the water at the bottom of the water body.

[0068] In this embodiment, after introducing water from the bottom of the water body, in order to evenly distribute the water body into the water-gas mixing chamber 9, the tip of the guide cone 4 is inserted into the water circulation inlet 10. The inner diameter of the water circulation inlet 10 is smaller than the bottom outer diameter of the guide cone 4. In this way, the bottom water body enters the water circulation inlet 10 after passing through the circulation drainage pipe 11. After entering the water circulation inlet 10, it first encounters the guiding effect of the guide cone 4 to evenly distribute the water body into the outer draft tube 7, and then evenly enters the water-gas mixing chamber 9. It not only has a higher mixing efficiency with air, but also can ensure the overall stability of the deep water induced circulation aerator 100, and will not affect the overall stability of the deep water induced circulation aerator 100 due to uneven introduction of the water body resulting in uneven water body density.

[0069] The deep water induced circulation aerator 100 of this embodiment mixes air with water to form a water-gas mixed circulating water containing a large number of fine air bubbles. Due to the density difference between the circulating water and the external water body, a water circulation power is formed. It can not only lift the water at the bottom of the water body to the water surface for oxygenation, but also oxygenate the water body during the water body circulation process, realizing secondary oxygenation. These two oxygen replacements are due to the continuous circulation process of the circulating water. The water is oxygenated for the first time in the deep water induced circulation aerator 100. After the circulating water rises to the water surface and flows, it contacts the air, which can form secondary oxygenation, thereby indirectly realizing the oxygenation of the bottom water body and also realizing additional oxygenation, increasing the dissolved oxygen at the bottom layer of the water body, and then repairing the overall water body. Embodiment

[0070] Such as Figures 2-3As shown in the figure, this embodiment provides a deep - water induced circulation aerator 100. Based on the first embodiment, a deep - and - shallow air - outlet conversion device 12 is added. When deep - water aeration cannot be carried out due to insufficient energy of the air - blowing power device, it can still aerate the water body, and can also push the deep - water induced circulation aerator 100 or its vehicle to move, thus avoiding the situation where the energy is exhausted, the deep - water induced circulation aerator 100 cannot work and cannot be salvaged, enabling continuous water body restoration without stopping aeration, and increasing the flexibility of the deep - water induced circulation aerator 100.

[0071] As Figure 2 shown in the figure, in this embodiment, a deep - and - shallow air - outlet conversion device 12 is added on the basis of the first embodiment. The deep - and - shallow air - outlet conversion device 12 of this embodiment is arranged in the air cavity 5 of the inner draft tube 3. A shallow - water air - outlet pipe 13 is arranged on the side of the deep - and - shallow air - outlet conversion device 12. One end of the shallow - water air - outlet pipe 13 is communicated with the reversing pipe 121, and the other end of the shallow - water air - outlet pipe 13 penetrates the inner draft tube 3 and the outer draft tube 7 radially and extends to the outside of the outer draft tube 7. When the energy of the air - blowing equipment is insufficient, the wind force and wind pressure decrease, and the water body in the air cavity 5 of the inner draft tube 3 begins to spread upward. At this time, the air cannot reach the deep - water air - outlet hole 6, and the air flows out of the upper part of the water body through the shallow - water air - outlet pipe 13 through the deep - and - shallow air - outlet conversion device 12. Although indirect aeration of the bottom of the water body cannot be carried out at this time, the upper part of the water body can still be aerated, and at the same time, a certain amount of power can be provided to slowly push the deep - water induced circulation aerator 100 or its vehicle to the shore, thereby reducing the difficulty of salvaging it, and energy can also be replenished to the air - blowing power device on the shore.

[0072] As Figure 3 shown in the figure, the deep - and - shallow air - outlet conversion device 12 of this embodiment includes a reversing pipe 121, a flow - limiting cone 123, a floating counterweight 125 and a balance float 126. A reversing conical pipe 122 is arranged at the top of the reversing pipe 121. The reversing conical pipe 122 of this embodiment is arranged in an inverted conical shape. The flow - limiting cone 123 is arranged in the reversing conical pipe 122, and the tip of the flow - limiting cone 123 is vertically downward in the reversing conical pipe 122. In this way, the flow - limiting cone 123 can fit with the reversing conical pipe 122 to play a closing role. The top of the flow - limiting cone 123 is connected to the floating counterweight 125 through a U - shaped connecting rod 124. The floating counterweight 125 is arranged in the air cavity 5 outside the reversing pipe 121. The bottom of the flow - limiting cone 123 is connected to the balance float 126 arranged in the reversing pipe 121 through a straight connecting rod 127. The floating counterweight 125 and the balance float 126 cooperate with each other to control the up - and - down movement of the flow - limiting cone 123, so as to open and close the reversing conical pipe 122.

[0073] Specifically, as Figure 3As shown in the figure, the top of the commutation conical tube 122 in this embodiment is not lower than the normal water level line, and the top of the floating counterweight 125 is not higher than the liquid level of the shallow water air outlet. Such a setting is to prevent the water outside the outer guide cylinder 7 from flowing into the commutation tube 121 through the shallow water air pipe 13 and overflowing into the air cavity 5 of the inner guide cylinder 3. Here, the position of the liquid level of the shallow water air outlet is flush with the position of the shallow water air pipe 13, and the position of the deep water air hole 6 is the liquid level of the deep water air outlet.

[0074] Under the deep water oxygenation condition, when the wind force at the air inlet 1 is sufficient, the deep and shallow air outlet conversion device 12 in the air cavity 5 is in a suspended state; since the mass and volume of the floating counterweight 125 are both larger than those of the balance float 126, the floating counterweight 125 drives the flow limiting cone 123 to downwardly close the commutation conical tube 122. At this time, the balance float 126 is in the water-filled commutation tube 121, and the upward buoyancy of the balance float 126 is less than the gravity of the floating counterweight 125, so the flow limiting cone 123 fits with the commutation conical tube 122, and the air cavity 5 and the commutation tube 121 are gas-sealed and do not flow. Under this condition, the deep water induced circulation oxygenator 100 normally performs indirect oxygenation at the bottom of the water body.

[0075] Under the shallow water oxygenation condition, when the wind force at the air inlet 1 is insufficient, the water in the air cavity 5 begins to rise, and the deep water induced circulation oxygenator 100 cannot perform indirect oxygenation at the bottom of the water body. When the liquid level in the air cavity 5 rises to the liquid level of the diving air outlet, the floating counterweight 125 in the water is completely immersed in the water, and its buoyancy is the largest. In addition, under the action of buoyancy, the balance float 126 in the commutation tube 121 causes the flow limiting cone 123 to move away from the commutation conical tube 122. The flow channel between the air cavity 5 and the commutation tube 121 is opened, and the air at the air inlet 1 enters the commutation tube 121 through the commutation conical tube 122, pushing out the water body above the shallow water air pipe 13 in the commutation tube 121, flowing through the shallow water air pipe 13 into the outside of the outer guide cylinder 7. In this way, the air and the upper part of the water body are oxygenated, and a reaction force is formed to slowly push the deep water induced circulation oxygenator 100 or its vehicle to the shore.

[0076] Under the shallow water oxygenation condition, the balance float 126 in the commutation tube 121 is still immersed in the water body. In this way, due to the action of buoyancy, the flow limiting cone 123 can be better moved away from the commutation conical tube 122, and the flow limiting cone 123 will not fall and fit with the commutation conical tube 122 due to the wind force, resulting in the closing of the flow channel between the air cavity 5 and the commutation tube 121. Embodiment

[0077] As Figures 4-9 shown, this embodiment provides a water body restoration and maintenance platform, which adopts a combined detachable device, is not restricted by the environment, and is powered by a photovoltaic power source and / or a wind power source to solve the problems existing in the above-mentioned prior art, so that the device can operate self-sufficiently and perform water body restoration in a remote environment.

[0078] The water body restoration and maintenance platform of this embodiment adopts the deep - water induced circulation aerator 100 of Embodiment 1 or Embodiment 2. It also has the following characteristics:

[0079] As Figure 4 and 7 As shown, a water body restoration and maintenance platform provided in this embodiment includes the deep - water induced circulation aerator 100 of Embodiment 1. Among them, a deep - water induced circulation aerator 100 is arranged in the middle of the floating platform 200. The floating platform 200 is evenly provided with a photovoltaic power supply module 400. A blower 300 is arranged above the deep - water induced circulation aerator 100. The blower 300 is fixed on the upper part of the floating platform 200. A waterproof control box 500 is arranged at the rear of the blower 300. A wind power supply module 600 is arranged on the upper part of the waterproof control box 500. The waterproof control box 500 includes an existing power supply control circuit, a PLC, a wired / wireless communication module, and a battery management module. The waterproof control box 500 is mainly used to supply the power obtained by the photovoltaic power supply module 400 and the wind power supply module 600 to the blower 300.

[0080] As Figure 5 and 6 As shown, the floating platform 200 of this embodiment includes 6 unit floating boxes 201, a fiberglass grid board 207, a first transverse connecting piece 203, a second transverse connecting piece 204, a first longitudinal connecting piece 205, a second longitudinal connecting piece 206, and an end connecting piece 202. The unit floating box 201 is a cylindrical floating box. The unit floating box 201 uses a thin - wall polyethylene outer cylinder filled with polystyrene inside to provide buoyancy. The size of the unit floating box 201 is Φ600×1500mm, and the length of each unit floating box 201 is 1700mm. There are 3 unit floating boxes 201 on each side. The two ends of the axially adjacent unit floating boxes 201 are fixedly connected through the end connecting piece 202. The two sides of the axially adjacent unit floating boxes 201 are fixedly connected through the first longitudinal connecting piece 205 and the second longitudinal connecting piece 206. The parallel adjacent unit floating boxes 201 are fixedly connected through the first transverse connecting piece 203 and the second transverse connecting piece 204. The length of the first transverse connecting piece 203 is greater than the length of the second transverse connecting piece 204. The fiberglass grid board 207 is fixedly laid on the first transverse connecting piece 203. In this way, the floating platform 200 is formed by longitudinal and transverse connecting pieces, and the overlying fiberglass grid board 207 forms a working platform with a maximum load - bearing capacity of 1200kg.

[0081] Specifically, as Figure 6As shown in the figure, the first longitudinal connecting member 205 is arranged on the upper part of the unit floating box 201 and fixedly installed on the end connecting member 202, and the second longitudinal connecting member 206 is arranged on the lower part of the unit floating box 201 and fixedly installed on the end connecting member 202; the first transverse connecting member 203 is arranged on the upper part of the unit floating box 201 and fixedly installed on the first longitudinal connecting member 205, and the second transverse connecting member 204 is arranged on the lower part of the unit floating box 201 and fixedly installed on the second longitudinal connecting member 206. The floating body platform 200 can increase its length through the axial connection of the end connecting members 202 of the unit floating box 201. In this embodiment, 3 unit floating boxes 201 are axially arranged to increase the length. The floating body platform 200 can increase its width by arranging multiple columns of unit floating boxes 201. In this embodiment, 2 columns of unit floating boxes 201 are arranged to increase the width.

[0082] As Figure 7 - 9 shows, the photovoltaic power supply module 400 of this embodiment includes a rechargeable battery pack 401 and a solar panel 402. The solar panel 402 is annularly arranged on the fiberglass grid board 207, and the rechargeable battery pack 401 is arranged below the solar panel 402. The solar panel 402 of this embodiment is composed of 18 polycrystalline silicon photovoltaic panels with a size of 1250×670mm. A blower 300, a waterproof control box 500, and a wind power supply module 600 are sequentially arranged in the middle of the annular solar panel 402; in order to better layout the floating platform, the photovoltaic power supply modules 400 are evenly distributed around. In order to save space, the rechargeable battery pack 401 is directly arranged below the solar panel 402, and a deep water induced circulation aerator 100 is arranged below the middle platform. A blower 300 is arranged on one side, and a waterproof control box 500 is arranged on the other side. Such a layout is reasonable and they do not affect each other.

[0083] As Figure 7 and 9 As shown in the figure, the wind power supply module 600 of this embodiment includes a wind turbine support column 601 and a wind turbine arranged on the wind turbine support column. The wind power supply module 600 of this embodiment is composed of an existing wind turbine, a wind vane, a triangular bracket, and connecting parts, and is used to provide power for the blower 300 under the conditions of cloudy days or insufficient sunlight. The air outlet of the blower 300 is communicated with the air inlet 1 of the deep water induced circulation aerator 100. The waterproof control box 500 is used to control the power supply of the blower 300 by the wind power supply module 600 and the photovoltaic power supply module 400.

[0084] The blower 300 of this embodiment is a small high-pressure centrifugal blower 300. The blower 300 adopts a high-speed vortex air pump, and its air volume is 60m

[0084] , 3 / h, with a pressure of 0.10 bar and a power of 0.75 kw, is used to provide oxygenated air and power for the deep - water induced circulation aerator 100. With the cooperation of the blower 300 in this embodiment, the service area for circulation aeration is approximately 1000 m 2 , and the circulation flow rate is approximately 1200 m 3 / d.

[0085] This embodiment also includes a shore extension module. The extension module is the same as the photovoltaic power supply module 400 and the wind power supply module 600 of this embodiment. Its main function is to charge when aligned on the shore after the power of the water body restoration and maintenance platform is insufficient or exhausted, so as to efficiently maintain the continuity of the work of the water body restoration and maintenance platform.

[0086] Specific examples are used in the present invention to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A deep - water induced circulation aerator, characterized in that: It includes an inner draft tube, an outer draft tube, an air inlet, and a water circulation inlet. The inner draft tube is nested inside the outer draft tube, and the top of the inner draft tube is higher than the top of the outer draft tube. The air inlet is arranged at the top of the inner draft tube. The bottom of the inner draft tube is closed, and a plurality of deep water air outlet holes are formed in the outer wall. The bottom of the outer draft tube is closed, and the water circulation inlet is provided. A cutting body is arranged at intervals between the outer wall of the inner draft tube and the inner wall of the outer draft tube. The water circulation inlet is connected with a circulating drainage pipe, and the free end of the circulating drainage pipe extends to the bottom of the water body; A water baffle is arranged at the top of the inner draft tube. The water baffle is an annular water baffle. The outer diameter of the water baffle is larger than the outer diameter of the outer draft tube. The air inlet is arranged in the middle of the water baffle. The air inlet is communicated with the air cavity of the inner draft tube, and the air cavity is communicated with the deep water air outlet holes; A flow guiding cone is arranged at the bottom of the inner draft tube. The tip of the flow guiding cone extends into the water circulation inlet. The inner diameter of the water circulation inlet is smaller than the outer diameter of the bottom surface of the flow guiding cone. The deep water air outlet holes are arranged at the upper part of the flow guiding cone. The deep water air outlet holes are evenly distributed along the radial direction of the inner draft tube. The top of the outer draft tube is flush with the water level line of the water body; The cutting body is horizontally arranged between the deep water air outlet holes and the top of the outer draft tube. The cross section of the cutting body is a triangular cross section. The cutting body is annularly arranged on the inner wall of the outer draft tube and the outer wall of the inner draft tube. A bent air-water mixing cavity is formed between the spaced cutting bodies; the sharp corners of the cutting bodies arranged on the inner wall of the outer draft tube face the outer wall of the inner draft tube, and the sharp corners of the cutting bodies arranged on the outer wall of the inner draft tube face the inner wall of the outer draft tube. The sharp corners of the adjacent and spaced cutting bodies are arranged crosswise in the vertical direction.

2. The deep-water induced circulation aerator according to claim 1, characterized in that: It further includes a deep and shallow air outlet conversion device. The deep and shallow air outlet conversion device is arranged in the air cavity of the inner draft tube. A shallow water outlet pipe is arranged on the side of the deep and shallow air outlet conversion device. The deep and shallow air outlet conversion device includes a reversing pipe, a flow limiting cone, a floating counterweight, and a balancing float. A reversing conical pipe is arranged at the top of the reversing pipe. The flow limiting cone is arranged in the reversing conical pipe. The top of the flow limiting cone is connected with the floating counterweight through a U-shaped connecting rod. The bottom of the flow limiting cone is connected with the balancing float arranged in the reversing pipe through a straight connecting rod. The mass and volume of the floating counterweight are both larger than those of the balancing float.

3. The deep-water induced circulation aerator according to claim 2, characterized in that: The top of the reversing conical pipe is not lower than the normal water level line. The top of the floating counterweight is not higher than the liquid level of the shallow water outlet. The tip of the flow limiting cone is vertically downward arranged in the reversing conical pipe; One end of the shallow water outlet pipe is communicated with the reversing pipe, and the other end of the shallow water outlet pipe penetrates through the inner draft tube and the outer draft tube along the radial direction and extends to the outside of the outer draft tube.

4. A water body restoration and maintenance platform, characterized in that: Comprising the deep - water induced circulation aerator according to any one of claims 1 to 3, wherein the deep - water induced circulation aerator is arranged in the middle of the floating platform, the floating platform is evenly provided with photovoltaic power supply modules, a blower is arranged above the deep - water induced circulation aerator, the blower is fixed on the upper part of the floating platform, a waterproof control box is arranged at the rear of the blower, and a wind power supply module is arranged on the upper part of the waterproof control box.

5. The water body restoration and maintenance platform according to claim 4, characterized in that: The floating platform comprises a plurality of unit floating boxes, a fiberglass grid board, a first transverse connecting piece, a second transverse connecting piece, a first longitudinal connecting piece, a second longitudinal connecting piece and an end connecting piece. The unit floating box is a cylindrical floating box. The two ends of axially adjacent unit floating boxes are fixedly connected through the end connecting piece, the two sides of axially adjacent unit floating boxes are fixedly connected through the first longitudinal connecting piece and the second longitudinal connecting piece, the parallel adjacent unit floating boxes are fixedly connected through the first transverse connecting piece and the second transverse connecting piece. The length of the first transverse connecting piece is greater than the length of the second transverse connecting piece, and the fiberglass grid board is fixedly laid on the first transverse connecting piece.

6. The water body restoration and maintenance platform according to claim 5, characterized in that: The first longitudinal connecting piece is arranged on the upper part of the unit floating box and fixedly installed on the end connecting piece, and the second longitudinal connecting piece is arranged on the lower part of the unit floating box and fixedly installed on the end connecting piece; The first transverse connecting piece is arranged on the upper part of the unit floating box and fixedly installed on the first longitudinal connecting piece, the second transverse connecting piece is arranged on the lower part of the unit floating box and fixedly installed on the second longitudinal connecting piece. The length of the floating platform can be increased by axially connecting the end connecting pieces of the unit floating boxes, and the width of the floating platform can be increased by arranging multiple columns of the unit floating boxes.

7. The water body restoration and maintenance platform according to claim 6, characterized in that: The photovoltaic power supply module comprises a rechargeable battery pack and solar panels. The solar panels are arranged in a ring on the fiberglass grid board, the rechargeable battery pack is arranged below the solar panels, and the blower, the waterproof control box and the wind power supply module are sequentially arranged in the middle of the ring - shaped solar panels; The wind power supply module comprises a wind turbine support column and a wind turbine arranged on the wind turbine support column. The air outlet of the blower is communicated with the air inlet of the deep - water induced circulation aerator, and the waterproof control box is used to control the wind power supply module and the photovoltaic power supply module to supply energy to the blower.

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