A water oxygenation device for liquid phase mass transfer

Abstract

The invention relates to the technical field of water treatment, in particular to a water oxygenation device for liquid phase mass transfer, comprising: a fixed component, comprising a bracket and a floating plate arranged on the lower end surface of the bracket; and a moving component, comprising a transport pipe, a pushing tooth arranged on the inner wall of the transport pipe, a containing shell arranged on the lower end of the transport pipe, a driving shell arranged on the lower end of the containing shell, a fixing ring arranged on the inner wall of the driving shell and a driving sleeve arranged on the end of the driving shell; high-concentration dissolved oxygen water is pressurized by a dissolved air pump, and then the dissolved oxygen water is sprayed outward from a jet port at the bottom, and a stirring blade at the bottom rotates to drive the water body at the bottom of the water body to move, accelerate the mixing of the sprayed dissolved oxygen water and the water body, and when the dissolved oxygen water is sprayed outward, a first joint contacts a second joint to drive the containing shell to rotate, and at this time the jet port rotates together with the containing shell, and the dissolved oxygen water rotates and sprays out in all directions, so as to avoid the situation that the oxygen concentration of the water body is too high or too low in some areas of the water body.

Description

Technical Field

[0001] The invention relates to the technical field of water treatment, in particular to a water oxygenation device for liquid phase mass transfer. Background Art

[0002] Oxygenation is required in all steps of sewage treatment and water management. Oxygenation in the biochemical pool of the sewage treatment plant can greatly reduce the energy consumption of aeration in the sewage plant. It can also be used to increase dissolved oxygen in water and eliminate black and smelly water. It can also be used to oxygenate fish ponds, inhibit pathogenic bacteria, reduce the use of antibiotics, etc. Water oxygenation is very critical for water treatment oxygenation and water ecological restoration oxygenation.

[0003] The patent with publication number CN109734173A discloses a deep water body water supply and oxygenation device, which connects a water storage tank with a water body through a drainage pipe, so that water in the water body enters the water storage tank and makes the water surface of the water body flush with the water surface in the water storage tank. When the surface water of the water body is continuously supplied to the water storage tank through the water supply mechanism, the water in the water storage tank flows back to the deep water level of the water body through the drainage pipe, so that the surface water flows through the water storage tank to the deep water level of the water body and forms a circulation, so that the surface saturated dissolved oxygen water is directly guided to the deep water level of the water body, which can play the role of large-scale oxygen supply to the deep water level.

[0004] However, this technical solution still has the following defects: when the device is oxygenating, the dissolved oxygen water in the surface layer is transported to the bottom of the water by a water truck to oxygenate the deep layer, but after the dissolved oxygen water of the device enters the deep layer, the range that can be oxygenated is small. Summary of the invention

[0005] In view of the above problems in the prior art, the present invention is proposed.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A water oxygenation device for liquid phase mass transfer, comprising: a fixing assembly, comprising a bracket and a floating plate arranged on the lower end surface of the bracket, the floating plate is used to provide the bracket with floating on the water surface;

[0007] A motion assembly, comprising a transport tube, a pushing tooth arranged on the inner wall of the transport tube, a housing arranged at the lower end of the transport tube, a driving shell arranged at the lower end of the housing, a fixing ring arranged on the inner wall of the driving shell, and a driving sleeve arranged at the end of the driving shell, wherein the driving shell is located at the lower end of the housing and sleeved on the outer wall of the housing;

[0008] The outer wall array of the housing shell is provided with jet ports, the end of the housing shell is provided with a connecting ring, the inner wall of the connecting ring is provided with a groove, and the inner wall array of the groove is provided with openings;

[0009] The inner wall of the accommodating shell is also provided with a transmission sleeve, the outer wall of the transmission sleeve is provided with a convex rod, the end of the transmission sleeve is provided with a first joint, the other end of the transmission sleeve is provided with an embolism plate, the outer wall of the transmission sleeve is sleeved with a second elastic member, and the end of the accommodating shell is also provided with a connecting shell;

[0010] The dissolved oxygen water sprayed outward by the water oxygenation device is firstly used to produce oxygen through an oxygen generator. A molecular sieve is installed inside the oxygen generator. The molecular sieve can selectively adsorb nitrogen in the air to allow oxygen to pass through. The molecular sieve is used to increase the oxygen content.

[0011] The dissolved air pump uses negative pressure to inhale gas, and the liquid and gas are mixed through the rotating pump impeller. Oxygen and water are pressurized and mixed in the pump. The mixed gas-liquid fluid is pressurized and made into super-saturated dissolved oxygen water through the dissolved air pump.

[0012] As a preferred solution of the water oxygenation device for liquid phase mass transfer of the present invention, an extension frame is provided at the lower end of the bracket, and an auxiliary frame is provided on the outer wall of the extension frame.

[0013] As a preferred solution of the water oxygenation device for liquid phase mass transfer described in the present invention, wherein: the outer wall of the transport pipe is connected to a straight pipe, a limiting ring is provided at the end of the straight pipe, the end of the limiting ring extends to the inner wall of the groove and slidably cooperates with it, the outer wall of the limiting ring is provided with a placement groove, the inner wall of the placement groove is provided with a first elastic part, and a spherical ball is provided on the outer side of the first elastic part.

[0014] As a preferred solution of the water oxygenation device for liquid phase mass transfer of the present invention, the driving gear axis is provided with a rotating shaft, the end of the rotating shaft extends to the outer wall of the straight-through pipe and is provided with a stirring blade.

[0015] As a preferred embodiment of the water oxygenation device for liquid phase mass transfer described in the present invention, the inner wall of the drive shell is provided with drive teeth, a docking shell is provided at the end of the drive shell, the fixed ring is sleeved on the outer wall of the rotating shaft, a fixed rod is provided on the outer wall of the fixed ring, an eccentric ring is provided on the end of the fixed ring, a moving ring is sleeved on the outer wall of the eccentric ring, a first moving rod is provided on the outer wall of the moving ring, a first moving block is hinged on the end of the first moving rod, a second moving rod is also provided on the outer wall of the moving ring, and a second moving block is hinged on the end of the second moving rod.

[0016] As a preferred solution of the water oxygenation device for liquid phase mass transfer of the present invention, a swing ring is further provided at the end of the eccentric ring, and a swing rod is provided on the outer wall of the swing ring.

[0017] As a preferred embodiment of the water oxygenation device for liquid phase mass transfer described in the present invention, the drive sleeve is sleeved on the outer wall of the rotating shaft, a second joint is provided at the end of the drive sleeve, a hinged rod is provided on the outer wall of the drive sleeve, a push rod is hinged at the end of the hinged rod, and a slider is hinged at the other end of the push rod.

[0018] As a preferred solution of the water oxygenation device for liquid phase mass transfer described in the present invention, the outer wall of the slider is provided with a slide plate, the end of the driving sleeve is provided with a third elastic member, the end of the third elastic member is provided with a straight plate, the inner wall of the straight plate is provided with a slide groove, and the outer wall of the slide plate extends to the inner wall of the slide groove and slidably cooperates therewith.

[0019] The beneficial effects of the present invention are as follows: the present invention increases the solubility of oxygen in water by pressurizing through a dissolved air pump to form high-concentration dissolved oxygen water, and then pressurizes the dissolved oxygen water and transports it to a transport pipe, and the dissolved oxygen water is sprayed outward from the jet port at the bottom, and the stirring blade at the bottom rotates to drive the movement of the water body at the bottom, thereby accelerating the mixing of the sprayed dissolved oxygen water and the water body, and when the dissolved oxygen water is sprayed outward, the first joint contacts the second joint to drive the accommodating shell to rotate, and at this time the jet port rotates together with the accommodating shell, and when the jet port rotates, the dissolved oxygen water rotates and sprays in all directions, thereby preventing the dissolved oxygen water from mixing with the water body for oxygenation only in a small range, resulting in a situation where the oxygen content of the water body is locally high, the overall uniformity is poor, and the oxygen concentration of the water body is too high or too low in some areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the process of preparing supersaturated dissolved oxygen water in the present invention;

[0022] Figure 2 It is a schematic diagram of the overall structure of a water oxygenation device for liquid phase mass transfer according to the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the fixing assembly in the present invention;

[0024] Figure 4 It is a schematic diagram of the connection relationship between the transport pipe and the straight pipe in the present invention;

[0025] Figure 5 It is a schematic diagram of the connection relationship between the straight-through pipe and the accommodating shell in the present invention;

[0026] Figure 6 It is a side cross-sectional view of the accommodating shell and the driving sleeve in the present invention;

[0027] Figure 7 is a side sectional view of the accommodating shell in the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the drive housing in the present invention;

[0029] Fig. 9 For the present invention Figure 8 A schematic diagram of the enlarged structure in FIG.

[0030] Reference numerals: 100, fixing assembly;

[0031] 101, bracket; 1011, extension frame; 1012, auxiliary frame; 102, floating board;

[0032] 200, motion assembly; 201, transport tube; 2011, straight-through tube; 2012, stop ring; 2013, placement groove; 2014, first elastic member; 2015, ball; 202, push tooth; 2021, rotating shaft; 2022, stirring blade; 203, accommodating shell; 2031, jet port; 2032, connecting ring; 2033, groove; 2034, opening; 2035, transmission sleeve; 2036, convex rod; 2037, first joint; 2038, embolism plate; 2039, second elastic member; 20310, connecting shell; 204, driving shell ; 2041, driving tooth; 2042, docking shell; 205, fixing ring; 2051, fixing rod; 2052, eccentric ring; 2053, moving ring; 2054, first moving rod; 2055, first moving block; 2056, second moving rod; 2057, second moving block; 2058, swing ring; 2059, swing rod; 206, driving sleeve; 2061, second joint; 2062, hinged rod; 2063, pushing rod; 2064, sliding block; 2065, sliding plate; 2066, third elastic member; 2067, straight plate; 2068, slide groove. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Example 1

[0037] refer to Figure 1 , which is the first embodiment of the present invention, and this embodiment provides a method for preparing supersaturated dissolved oxygen water.

[0038] The regulating valve can accurately control the speed and amount of water passing through the valve, and introduce the water into the pressure-stabilizing tank. The pressure-stabilizing tank acts as a pressure buffer to balance the water pressure in the water supply system. It can absorb pressure fluctuations in the system to ensure that the water supply pressure remains stable under changes in demand or external factors. The pressure-stabilizing tank is located above the dissolved air pump and keeps water inside the dissolved air pump at all times.

[0039] The negative pressure gauge is installed above the pressure stabilizing tank. It monitors the negative pressure inside the pressure stabilizing tank in real time to avoid excessive or insufficient negative pressure inside the pressure stabilizing tank, which damages the sealing and causes the dissolved air pump to be unable to pump out water. This ensures the normal operation of the pressure stabilizing tank and timely detection of potential problems.

[0040] Oxygen is produced through an oxygen generator, and molecular sieves are installed inside the oxygen generator. When producing oxygen, these molecular sieves have specific pore sizes and adsorption properties. The molecular sieves can selectively adsorb nitrogen in the air and allow oxygen to pass through. By using molecular sieves, the oxygen partial pressure in the air can be increased from 21% to more than 92%, thereby improving the gas-liquid mass transfer efficiency.

[0041] After being purified by molecular sieve adsorption, oxygen O2 is first transmitted to the pipeline below, and then enters the dissolved air pump through the pipeline. At this time, the water inside the pressure regulating tank enters the dissolved air pump together. Flow meters are connected to the outside of the oxygen pipeline and the water pipeline to observe the amount of oxygen and water entering the dissolved air pump. The ratio of gas and water entering the dissolved air pump is adjusted by regulating valves on both sides to produce dissolved oxygen water. The common gas-water ratio range is between 1:8 and 1:20. The air intake and water intake are controlled by regulating valves on both sides to keep them within a suitable range.

[0042] The dissolved air pump can effectively dissolve the purified oxygen in the water through its special working principle. The liquid and oxygen are mixed and stirred by the high-speed rotating pump impeller, thus eliminating the need for agitators and mixers. During the pressurized mixing process in the pump, the gas and liquid can be fully dissolved, and the dissolution efficiency can reach 80~100%.

[0043] The dissolved air pump can produce excellent gas-liquid atomization effect, forming fine bubbles, turning the water into white mist instantly. This overcomes the shortcomings of traditional gas supply equipment, such as large bubbles, easy aggregation, fast rising speed and short residence time in the water. The dissolved air pump pressurizes and mixes the gas inside the pump, so that the gas is directly stirred by the water pump impeller. The gas-liquid dissolution rate reaches more than 95%, so that it can quickly reach a saturated dissolved oxygen state and save energy.

[0044] The dissolved air pump uses negative pressure to inhale gas and mixes the liquid and gas through the high-speed rotating pump impeller. Oxygen and water are pressurized and mixed in the pump. The mixed gas-liquid fluid is pressurized, which makes the oxygen dissolve in the liquid more effectively. The super-saturated dissolved oxygen water after pressurized stirring enters the dissolved air tank.

[0045] In the dissolved air tank, the gas and liquid are fully mixed, and the gas-liquid separation is achieved through specific process conditions to ensure that the oxygen dissolved in the water reaches a supersaturated state; the dissolved air tank is usually equipped with a pressure control system, which detects the pressure inside the tank by connecting a pressure gauge for timely adjustment, and can maintain a stable pressure in the tank, thereby ensuring that the gas can be evenly dissolved in the water to form stable supersaturated dissolved oxygen water. By adjusting the operating conditions in the dissolved air tank, such as pressure, temperature, residence time, etc., the oxygen dissolution effect can be further optimized, and the quality and stability of the supersaturated dissolved oxygen water can be improved.

[0046] The main purpose of traditional aeration is to provide sufficient dissolved oxygen to the wastewater to meet the breathing needs of aerobic microorganisms in the biochemical treatment process. During the aeration process, the air is dispersed into a large number of tiny bubbles through aeration equipment (such as aerators, aeration heads, etc.) and evenly distributed in the wastewater. During the rising process, these bubbles fully contact with the wastewater, so that the oxygen in the bubbles gradually dissolves into the wastewater. The smaller the bubbles, the larger the specific surface area, and the higher the efficiency of dissolved oxygen.

[0047] According to the double membrane theory, there is a gas film and a liquid film on the gas-liquid interface. In the process of oxygen transferring from the gas phase to the liquid phase, it needs to pass through these two membranes. The aeration process accelerates the oxygen transfer rate by reducing the thickness of the gas film and the liquid film, increasing the gas-liquid contact area, and increasing the renewal rate of the gas-liquid interface. This helps to increase the concentration and distribution uniformity of dissolved oxygen in wastewater.

[0048] However, although the traditional aeration method has a simple principle and significant effect, it also has certain limitations and challenges. For example, high energy consumption is one of the main disadvantages of the traditional aeration method. Especially in mechanical aeration, a large amount of electricity is consumed to drive the aeration equipment, resulting in increased operating costs. In addition, traditional aeration technology increases the dissolved oxygen content by injecting a large amount of air into the water. However, due to the large size of the bubbles, their residence time in the water is short, and the contact area between oxygen and water is limited, resulting in low oxygen utilization efficiency. Low oxygen utilization directly affects the growth and metabolism of microorganisms, which in turn affects the effect of sewage treatment, making the treated water possibly unable to meet the expected standards.

[0049] In order to solve the problems existing in traditional aeration methods, we abandon gas-liquid mass transfer and adopt liquid-liquid mass transfer. We use concentration gradient mass transfer to release high-concentration dissolved oxygen water into the water body. High-concentration dissolved oxygen water will automatically flow to the low-concentration area until the concentration in the water body is evenly distributed.

[0050] Concentration gradient mass transfer is mainly based on the spontaneous migration of substances due to concentration differences. When the concentrations of components in a mixture system are different in different regions, a series of mass transfer processes will be triggered. Molecular diffusion, as a basic method of mass transfer, is caused by the irregular thermal motion of molecules.

[0051] In the absence of macroscopic fluid motion, matter is transferred by the random motion of molecules. When there is a concentration difference, molecules in the high concentration area migrate to the low concentration area through thermal motion to achieve uniform concentration.

[0052] When high concentration dissolved oxygen water is released into the water, convection diffusion will also occur. Convection diffusion is caused by the macroscopic movement of the fluid and usually occurs in flowing fluids. This mass transfer method involves the macroscopic movement of fluid micro-groups and is usually much faster than molecular diffusion.

[0053] Moreover, the diffusion of high concentration dissolved oxygen water in the water body is proportional to the concentration gradient, and the proportional coefficient is the diffusion coefficient, that is, the greater the concentration gradient, the faster the diffusion.

[0054] Fick's law is the most basic mathematical model for describing mass transfer in concentration gradient. It states that the diffusion flux of a substance is proportional to the concentration gradient, and the proportionality coefficient is the diffusion coefficient. In other words, the greater the concentration gradient, the faster the diffusion. The diffusion coefficient is a physical quantity that describes the diffusion capacity of a substance, which is related to the type of substance, temperature, and properties of the medium. High temperature usually increases the movement speed of molecules, thereby increasing the diffusion coefficient and accelerating the diffusion process.

[0055] Using the principle of concentration gradient mass transfer, we first use an air pump to make high-concentration dissolved oxygen water, and then inject the high-concentration dissolved oxygen water from the air tank into the water body. Using the concentration difference between the supersaturated dissolved oxygen water and the water body, we quickly diffuse the dissolved oxygen water from the high-concentration area to the low-concentration area until the concentration in the water body is evenly distributed. In this process, our energy consumption is mainly concentrated in the oxygen generator to prepare high-purity oxygen and the air pump to pressurize oxygen to make high-concentration dissolved oxygen water. This is different from the transmission aeration method in which most of the energy is wasted on injecting air into the water, which can reduce energy consumption.

[0056] In summary, the above-mentioned equipment are all installed in a box and placed on the side of the pond. The dissolved oxygen concentration in the water is dynamically detected by the dissolved oxygen probe. When the dissolved oxygen concentration reaches or exceeds the target, the production of supersaturated dissolved oxygen water is stopped and injected into the water. When the dissolved oxygen concentration in the water body is detected to be lower than the target value, the PCB control device is started, and oxygen is produced by the oxygen generator. The molecular sieve inside the oxygen generator increases the oxygen content and the oxygen partial pressure is increased from 21% to more than 92%, in preparation for the subsequent production of supersaturated dissolved oxygen water. The oxygen enters the pipeline, and then the pure oxygen is pressurized by the dissolved air pump to increase the solubility of oxygen in water, so that the oxygen dissolves quickly in the water, and a high-concentration supersaturated dissolved oxygen water is produced by the dissolved air pump. The high-concentration supersaturated dissolved oxygen water is further mixed in the dissolved air tank to ensure that the oxygen reaches a supersaturated state in the water.

[0057] High-concentration supersaturated dissolved oxygen water enters the water body through a mixed water distribution device placed in the pond using a multi-point jet method. This is different from the gas-liquid mass transfer mode used in traditional oxygen aeration, which is changed to a liquid-liquid mass transfer mode. The difference is that the traditional gas-liquid mass transfer mode uses a lot of power to overcome the water pressure and rush bubbles into the water body. This process requires overcoming the resistance of the gas film and the liquid film to transfer the oxygen molecules in the air from the gas phase to the liquid phase. The power for the molecules to pass through in this process mainly comes from the partial pressure gradient of the gas film and the molecular concentration gradient of the liquid film. In addition, the bubbles come into contact with water during their rise, and the difference in dissolved oxygen concentration between the gas-liquid interface and the water body is very small. At the same time, the contact time between the gas and the water body is short, resulting in low mass transfer efficiency and a lot of waste of power.

[0058] In gas-liquid mass transfer, mass transfer mainly occurs at the gas-liquid interface. Since the gas exists in the form of bubbles in the liquid, the surface area of ​​the bubbles is relatively limited, which limits the contact area between the gas and the liquid, thereby affecting the mass transfer efficiency. In gas-liquid mass transfer, the bubble size has a significant effect on the mass transfer efficiency. Smaller bubbles can provide a larger gas-liquid contact area and improve the mass transfer efficiency. However, in actual operation, it is difficult to ensure the uniformity of bubble size and distribution, which will lead to instability in mass transfer efficiency. In gas-liquid mass transfer, solute molecules need to diffuse from the gas phase through the gas-liquid interface to the liquid phase. This path is relatively long and is affected by the gas-liquid interfacial tension and concentration gradient, which increases the mass transfer resistance.

[0059] Since the gas-liquid mass transfer mode has the problems of power waste and low mass transfer efficiency, it is changed to a liquid-liquid mass transfer mode. The liquid-liquid mass transfer mode mainly concentrates the power on the step of pressurizing the air to make it into high-concentration supersaturated dissolved oxygen water. The prepared supersaturated dissolved oxygen water is then injected into the water body through the nozzle below in a multi-point jet manner. When the high-concentration dissolved oxygen water jet enters the water body, a turbulent state is formed, which helps to quickly mix water with different dissolved oxygen concentrations.

[0060] In liquid-liquid mass transfer, the dissolved oxygen water prepared by pressurizing the dissolved air pump is itself liquid. The oxygen molecules in the dissolved oxygen water have been dissolved in the liquid. The solute molecules only need to diffuse between the two liquids. The mass transfer path is short and the resistance is small. The dissolved oxygen water and the water to be treated are directly mixed without passing through the gas-liquid interface and without considering the influence of bubble size and distribution. Therefore, it has a larger contact area and higher mass transfer efficiency.

[0061] In addition, when high-concentration dissolved oxygen water enters the water body, due to the large concentration difference between the two, the supersaturated dissolved oxygen water will quickly diffuse to the surrounding areas with lower concentrations, quickly mix with the water in the water body, and disperse in the water body, causing the high concentration difference of the overall water body to drop rapidly, avoiding the release of pressure, and the oxygen in the supersaturated dissolved oxygen water to re-form bubbles and dissipate in the water, resulting in energy waste.

[0062] During the mixing process of supersaturated dissolved oxygen water and body water, some microbubbles will be released in the water. At the moment of microbubble rupture, due to the drastic change of the disappearance of the gas-liquid interface, the high-concentration ions gathered on the interface will release the accumulated chemical energy, generating highly oxidizing free electron carriers such as hydroxyl radicals and oxygen free radicals. Hydroxyl free radicals have a very high redox potential, and the super strong oxidation effect they produce can degrade pollutants such as phenol that are difficult to oxidize and decompose under normal conditions in water, and can effectively inhibit harmful bacteria and achieve water purification.

[0063] Example 2

[0064] Reference Figure 2~Figure 9 , which is the second embodiment of the present invention, and this embodiment provides a water oxygenation device with liquid phase mass transfer. The method in Example 1 is applied to the device disclosed in this application to mix dissolved oxygen water with water.

[0065] Specifically, the device includes: a fixing assembly 100, including a bracket 101, a floating plate 102 provided at the end of the bracket 101;

[0066] The moving assembly 200 includes a transport tube 201, a pushing tooth 202 arranged at the end of the bracket 101, a containing shell 203 arranged at the end of the transport tube 201, a driving shell 204 arranged at the end of the containing shell 203, a fixing ring 205 arranged on the inner wall of the driving shell 204 and a driving sleeve 206 arranged at the end of the driving shell 204.

[0067] The floating plates 102 are fixed below both ends of the bracket 101 , and the entire bracket 101 floats on the water surface through the floating plates 102 .

[0068] The transport pipe 201 is connected to the booster pump, and the pressurized high-concentration dissolved oxygen water is transported to the transport pipe 201 by the booster pump. There is also a pushing tooth 202 inside the transport pipe 201. The pushing tooth 202 makes the stirring blade 2022 at the bottom rotate at the bottom, driving the water at the bottom to move.

[0069] The containing shell 203 is installed at the bottom of the straight pipe 2011. A plurality of jet ports 2031 are arranged on the surface of the containing shell 203. The dissolved oxygen water pressurized by the booster pump enters the straight pipe 2011 through the transport pipe 201, and finally enters the containing shell 203, and is sprayed into the water body through the jet ports 2031 on the containing shell 203. The high-concentration dissolved oxygen water is sprayed into the water body through the jet ports 2031, forming a turbulent state and mixing with the surrounding water body.

[0070] Meanwhile, the driving shell 204 is installed at the bottom of the accommodating shell 203, and the stirring blade 2022 is located at the bottom of the driving shell 204. When the stirring blade 2022 rotates at the bottom to stir the water body, the water body at the bottom moves and mixes with the dissolved oxygen water sprayed from the jet port 2031, thereby accelerating the mixing of the dissolved oxygen water and the water body.

[0071] In summary, when in use, the pushing teeth 202 are inside the transport pipe 201, driving the stirring blades 2022 located at the bottom of the driving shell 204 to rotate. When the stirring blades 2022 rotate, the water at the bottom is driven to move. The pushing teeth 202 are impacted by the dissolved oxygen water inside the transport pipe 201 and rotate, driving the stirring blades 2022 to move and stir continuously, which is conducive to the rapid dispersion of suspended matter, sediments, etc. into the entire water body, avoiding pollution and eutrophication in local areas, increasing the dissolved oxygen content in the water body, and improving the self-purification ability of the water body; and the dissolved oxygen concentration of the target water body is dynamically detected by the dissolved oxygen probe. When the dissolved oxygen concentration of the water body is When the temperature is low, the equipment is started, and the dissolved oxygen water is sprayed into the water through the jet port 2031 on the housing 203. When the equipment is started, the dissolved oxygen water enters the interior of the housing 203 through the straight pipe 2011, and the dissolved oxygen water impacts the embolic plate 2038, causing it to move downward inside the housing 203. At this time, the first joint 2037 and the second joint 2061 are in contact, driving the housing 203 to slowly rotate at the bottom of the straight pipe 2011. As the jet port 2031 rotates, the direction in which the dissolved oxygen water is sprayed rotates, and the dissolved oxygen water is sprayed all around to avoid excessively high or low oxygen in a local area, thereby improving the oxygen exposure effect of the entire water body.

[0072] Example 3

[0073] Reference Figure 2~Figure 7 , which is the third embodiment of the present invention, and this embodiment is implemented based on the previous embodiment.

[0074] Specifically, an extension frame 1011 is further provided at the end of the bracket 101 , and an auxiliary frame 1012 is provided on the outer wall of the extension frame 1011 .

[0075] Among them, the extension frame 1011 is fixed on both sides of the bracket 101, and an auxiliary frame 1012 is fixed on the surface of the extension frame 1011. The auxiliary frame 1012 is used to auxiliary fix the straight pipe 2011 to ensure the stability of the pipeline and prevent it from being damaged or causing safety hazards due to external forces.

[0076] Preferably, the outer wall of the transport pipe 201 is connected to a straight pipe 2011, a limiting ring 2012 is provided at the end of the straight pipe 2011, a placement groove 2013 is opened on the outer wall of the limiting ring 2012, and a first elastic member 2014 and a ball 2015 are provided on the inner wall of the placement groove 2013.

[0077] Among them, the straight pipe 2011 is connected with the transport pipe 201, and the booster pump pressurizes the dissolved oxygen water and transports it into the transport pipe 201, and then enters the straight pipe 2011. A limit ring 2012 is fixed at the bottom of the straight pipe 2011, and a plurality of placement grooves 2013 are opened on the outer wall of the limit ring 2012. A first elastic member 2014 is installed inside each placement groove 2013, and a ball 2015 is placed at the end of the first elastic member 2014, and the ball 2015 is pushed outward by the first elastic member 2014.

[0078] A groove 2033 is provided on the surface of the connecting ring 2032 at the top of the accommodating shell 203, and the groove 2033 is sleeved on the outside of the limiting ring 2012 at the bottom of the straight-through tube 2011. A plurality of openings 2034 are provided on the inner wall of the groove 2033, and the positions of the openings 2034 correspond to the placement grooves 2013 provided on the surface of the limiting ring 2012. The ball 2015 inside the placement groove 2013 is pushed by the first elastic member 2014 and is engaged inside the opening 2034, so that the accommodating shell 203 is sleeved on the outside of the straight-through tube 2011 without rotating.

[0079] A rotating shaft 2021 is disposed at the axis of the pushing tooth 202 , and an end of the rotating shaft 2021 extends to the outer wall of the straight-through tube 2011 and a stirring blade 2022 is disposed at the end.

[0080] Among them, the rotating shaft 2021 passes through the straight tube 2011, the upper end of the rotating shaft 2021 is connected to the pushing tooth 202, and the lower end extends to the bottom of the driving shell 204 and protrudes out. A stirring blade 2022 is arranged at the bottom of the rotating shaft 2021, and the stirring blade 2022 at the bottom is driven to rotate at the bottom of the driving shell 204 by the pushing tooth 202.

[0081] The outer wall array of the accommodating shell 203 is provided with jet ports 2031, the end of the accommodating shell 203 is provided with a connecting ring 2032, the inner wall of the connecting ring 2032 is provided with a groove 2033, the inner wall array of the groove 2033 is provided with openings 2034, and the end of the limiting ring 2012 extends to the inner wall of the groove 2033 and slidably cooperates therewith.

[0082] Among them, multiple jet ports 2031 are provided on the outer wall of the containing shell 203. The dissolved oxygen water is pressurized by a booster pump and transported to the straight pipe 2011, and finally enters the containing shell 203, and is ejected to the outside through the jet port 2031, enters the water body, mixes with the water body, and increases the dissolved oxygen content in the water body.

[0083] Preferably, a transmission sleeve 2035 is also provided on the inner wall of the accommodating shell 203, a protruding rod 2036 is provided on the outer wall of the transmission sleeve 2035, a first joint 2037 is provided on the end of the transmission sleeve 2035, an embolism plate 2038 is provided on the other end of the transmission sleeve 2035, a second elastic member 2039 is sleeved on the outer wall of the transmission sleeve 2035, and a connecting shell 20310 is also provided on the end of the accommodating shell 203.

[0084] Among them, the transmission sleeve 2035 is sleeved on the outside of the rotating shaft 2021, and the outer wall of the transmission sleeve 2035 is provided with multiple protruding rods 2036. The protruding rods 2036 pass through the bottom plate of the accommodating shell 203, and relative grooves are opened on the bottom plate of the accommodating shell 203, so that the protruding rods 2036 can move in the grooves. At the same time, the transmission sleeve 2035 is restricted by the protruding rods 2036 on the bottom plate and will not rotate, but can only slide up and down on the bottom plate.

[0085] The first joint 2037 is at the bottom of the transmission sleeve 2035, below the bottom plate of the accommodating shell 203. The embolic plate 2038 is arranged above the transmission sleeve 2035, inside the accommodating shell 203. A second elastic member 2039 is sleeved on the outside of the transmission sleeve 2035. The second elastic member 2039 pushes the embolic plate 2038 upward to block the bottom of the straight-through pipe 2011, preventing impurities or pollutants in the water body from entering the interior of the pipeline, thereby ensuring the cleanliness of the interior of the pipeline.

[0086] In summary, when the dissolved oxygen water enters the straight pipe 2011 from the transport pipe 201 during use, the water flow will impact the push teeth 202, causing the push teeth 202 to rotate inside the straight pipe 2011, and the push teeth 202 drive the rotating shaft 2021 to rotate, so that the stirring blades 2022 stir the water at the bottom, and the straight pipe 2011 is fixed by the auxiliary frame 1012 on the outer wall of the extension frame 1011, and the booster pump is used to increase the solubility of oxygen in the water, and then the dissolved oxygen water is transported from the transport pipe 201 to the inside of the straight pipe 2011, and then the dissolved oxygen water enters the accommodating shell 203 at the bottom of the straight pipe 2011. When the dissolved oxygen water enters the interior of the accommodating shell 203 from the straight-through pipe 2011, the pressurized water will impact the embolism plate 2038, causing the embolism plate 2038 to move downward. At this time, the embolism plate 2038 drives the transmission sleeve 2035 to move downward in the accommodating shell 203, and the embolism plate 2038 is separated from the straight-through pipe 2011. The dissolved oxygen water enters the interior of the accommodating shell 203, and then is ejected to the outside from the jet port 2031 set on the outer wall of the accommodating shell 203. The dissolved oxygen water enters the water body. At the same time, the stirring blade 2022 below drives the water body at the bottom to move, so that the dissolved oxygen water diffuses to a larger area, thereby improving the oxygen exposure effect of the overall water area.

[0087] Example 4

[0088] Reference Figure 2~Figure 9 , which is the fourth embodiment of the present invention, and this embodiment is implemented based on the previous embodiment.

[0089] Specifically, a driving tooth 2041 is provided on the inner wall of the driving shell 204, a docking shell 2042 is provided at the end of the driving shell 204, a fixed ring 205 is sleeved on the outer wall of the rotating shaft 2021, a fixed rod 2051 is provided on the outer wall of the fixed ring 205, an eccentric ring 2052 is provided at the end of the fixed ring 205, a moving ring 2053 is sleeved on the outer wall of the eccentric ring 2052, a first moving rod 2054 is provided on the outer wall of the moving ring 2053, a first moving block 2055 is hinged at the end of the first moving rod 2054, a second moving rod 2056 is also provided on the outer wall of the moving ring 2053, and a second moving block 2057 is hinged at the end of the second moving rod 2056.

[0090] Among them, the inner wall of the driving shell 204 is provided with a plurality of driving teeth 2041, the docking shell 2042 is fixed on the top of the driving shell 204, the docking shell 2042 is sleeved on the outside of the connecting shell 20310, and the connecting ring at the bottom of the connecting shell 20310 is engaged in the concave ring on the inner wall of the docking shell 2042.

[0091] The fixing ring 205 is sleeved on the outside of the rotating shaft 2021 . The outside of the fixing ring 205 is in contact with the auxiliary frame 1012 . The fixing ring 205 will not rotate due to the influence of the auxiliary frame 1012 . The fixing rod 2051 is fixed to the outer wall of the fixing ring 205 .

[0092] The eccentric ring 2052 is fixed on the outside of the rotating shaft 2021. As the rotating shaft 2021 rotates, it rotates eccentrically, driving the moving ring 2053 on the outside of the eccentric ring 2052 to move. The first moving rod 2054 and the second moving rod 2056 are fixed on the outer wall of the moving ring 2053, forming a straight line between the two, and the first moving block 2055 and the second moving block 2057 are hinged at the ends respectively.

[0093] Preferably, a swing ring 2058 is further provided at the end of the eccentric ring 2052 , and a swing rod 2059 is provided on the outer wall of the swing ring 2058 .

[0094] A swing ring 2058 is sleeved on the top of the eccentric ring 2052 , and a swing rod 2059 is fixed to the outer wall of the swing ring 2058 .

[0095] The first moving block 2055 at the top of the first moving rod 2054 slides on the inner wall of the top of the swing rod 2059 , and the second moving block 2057 at the top of the second moving rod 2056 slides on the inner wall of the top of the fixed rod 2051 .

[0096] The fixed ring 205 is fixed, and therefore is not affected by the rotation of the rotating shaft 2021 and will not rotate. The fixed rod 2051 is fixed, and the eccentric ring 2052 is fixed on the outside of the rotating shaft 2021. When the rotating shaft 2021 rotates one circle, the eccentric ring 2052 rotates one circle accordingly. Because the axis of the eccentric ring 2052 is not in a vertical line with the axis of the rotating shaft 2021, when the eccentric ring 2052 rotates, the rotation amplitude on one side is larger and the amplitude on the other side is smaller.

[0097] The movement ring 2053 sleeved on the outside of the eccentric ring 2052 is affected by the eccentric ring 2052 to move. Since the second movement block 2057 at the top of the second movement rod 2056 slides on the top inner wall of the fixed rod 2051, when the movement ring 2053 is affected and moves, the second movement block 2057 slides back and forth on the top inner wall of the fixed rod 2051. When the second movement block 2057 enters the inner wall of the driving tooth 2041 on the inner wall of the driving shell 204, The first moving block 2055 moves backward and is pulled out from the inside of the driving tooth 2041, and uses the top of the fixed rod 2051 as a fulcrum. Every time the rotating shaft 2021 rotates one circle, the internal eccentric ring 2052 drives the moving ring 2053 to move one cycle, and the first moving block 2055 and the second moving block 2057 enter the next driving tooth 2041. The stirring blade 2022 at the bottom rotates one circle, and the driving shell 204 rotates one grid angle of the driving tooth 2041.

[0098] The driving sleeve 206 is sleeved on the outer wall of the rotating shaft 2021 , a second joint 2061 is provided at the end of the driving sleeve 206 , a hinged rod 2062 is provided on the outer wall of the driving sleeve 206 , a push rod 2063 is hinged at the end of the hinged rod 2062 , and a slider 2064 is hinged at the other end of the push rod 2063 .

[0099] Among them, the driving sleeve 206 is sleeved on the outside of the rotating shaft 2021 and is not affected by the rotating shaft 2021. The second joint 2061 is arranged on the top of the driving sleeve 206 and is located below the first joint 2037. The hinged rod 2062 is arranged on both sides of the bottom of the driving sleeve 206. A push rod 2063 is hinged on the outer wall of the hinged rod 2062, and a slider 2064 is hinged at the bottom position of the push rod 2063.

[0100] Preferably, a slide plate 2065 is provided on the outer wall of the slider 2064, a third elastic member 2066 is provided on the end of the driving sleeve 206, a straight plate 2067 is provided on the end of the third elastic member 2066, a slide groove 2068 is provided on the inner wall of the straight plate 2067, and the outer wall of the slide plate 2065 extends to the inner wall of the slide groove 2068 and slidably cooperates therewith.

[0101] Among them, the straight plate 2067 is arranged inside the docking shell 2042, and the inner wall of the straight plate 2067 is provided with a slide groove 2068. The slider 2064 slides inside the slide groove 2068. When the driving sleeve 206 moves downward, the push rod 2063 moves to both sides, pushing the slider 2064 to slide to both sides in the straight plate 2067 until it is close to the inner wall of the docking shell 2042.

[0102] In summary, when in use, the pushing tooth 202 drives the rotating shaft 2021 to rotate, and the stirring blade 2022 at the bottom rotates together at the bottom of the driving shell 204. When the rotating shaft 2021 rotates, the driving shell 204 located above the stirring blade 2022 rotates together. When the rotating shaft 2021 rotates one circle, the driving shell 204 rotates an angle of the driving tooth 2041, and the docking shell 2042 above the driving shell 204 rotates synchronously with the driving shell 204.

[0103] When the dissolved oxygen concentration of the target water body detected by the dissolved oxygen probe is lower than the dissolved oxygen control target of the water body, the booster pump is started to transport the dissolved oxygen water to the transport pipe 201, and then enters the straight pipe 2011, and enters the containing shell 203 below. After the booster pump is started, the dissolved oxygen water will impact the embolism plate 2038, causing the embolism plate 2038 to move downward inside the containing shell 203. At this time, the dissolved oxygen water is sprayed from the jet port 2031 on the outer wall of the containing shell 203 into the surrounding water body.

[0104] When the plug plate 2038 moves downward, the transmission sleeve 2035 below the plug plate 2038 moves downward, and the first joint 2037 below the transmission sleeve 2035 contacts and engages with the second joint 2061 at the top of the drive sleeve 206, and continues to move downward, thereby pushing the drive sleeve 206 to move downward. When the drive sleeve 206 moves downward, the slider 2064 located on the inner wall of the straight plate 2067 is pushed by the push rod 2063, and the slide groove 2068 on the inner wall of the straight plate 2067 is engaged with the first joint 2037 below the transmission sleeve 2035. The slider 2064 moves from the inside to the outside on both sides, and the slider 2064 is close to the inner wall of the docking shell 2042. At this time, the straight plate 2067 rotates slowly with the docking shell 2042. At the same time, since the first joint 2037 and the second joint 2061 are engaged, the rotation of the straight plate 2067 drives the transmission sleeve 2035 above to rotate slowly. Due to the rotation of the transmission sleeve 2035, the protruding rod 2036 on the outer wall of the transmission sleeve 2035 contacts the bottom plate of the accommodating shell 203, driving the entire accommodating shell 203 to rotate slowly.

[0105] When the accommodating shell 203 rotates, the connecting ring 2032 on the top of the accommodating shell 203 is slowly rotated on the outside of the limiting ring 2012. When the accommodating shell 203 rotates, the groove 2033 on the inner wall of the connecting ring 2032 rotates, and the opening 2034 on the inner wall of the groove 2033 moves. When the opening 2034 moves, the inner wall of the opening 2034 squeezes the ball 2015, causing it to shrink toward the inside of the placement groove 2013 and squeeze the first elastic member 2014. At this time, the ball 2015 loses its locking effect on the connecting ring 2032.

[0106] When the containing shell 203 rotates slowly, the jet port 2031 on the outer wall rotates together with the containing shell 203 and sprays dissolved oxygen water to the surrounding water bodies. The containing shell 203 drives the jet port 2031 to rotate, so that the dissolved oxygen water can be evenly dispersed in the surrounding water bodies, so that it can be quickly mixed with the water body. The stirring of the stirring blades 2022 at the bottom is usually beneficial to the rapid dispersion of suspended matter, sediments, etc. into the entire water body, avoiding pollution and eutrophication in local areas. When the dissolved oxygen water is sprayed out from the jet port 2031, the stirring blades 2022 can quickly mix the water body and the dissolved oxygen water. The continuous stirring of the stirring blades 2022 and the jet of the jet port 2031 are combined to form a stronger water flow and mixing effect, further accelerating the mixing and diffusion of the dissolved oxygen water in the water. At the same time, the water flow generated during stirring can diffuse the dissolved oxygen water to a wider area.

[0107] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A water oxygenation device for liquid phase mass transfer, characterized in that: include: The fixing assembly (100) comprises a bracket (101) and a floating plate (102) arranged on the lower end surface of the bracket (101), wherein the floating plate (102) is used to enable the bracket (101) to float on the water surface; A motion assembly (200), comprising a transport tube (201), a pushing tooth (202) arranged on the inner wall of the transport tube (201), a containing shell (203) arranged at the lower end of the transport tube (201), a driving shell (204) arranged at the lower end of the containing shell (203), a fixing ring (205) arranged on the inner wall of the driving shell (204), and a driving sleeve (206) arranged at the end of the driving shell (204), wherein the driving shell (204) is located at the lower end of the containing shell (203) and is sleeved on the outer wall of the containing shell (203); The outer wall of the transport pipe (201) is connected to a straight pipe (211); the axis of the pushing tooth (202) is provided with a rotating shaft (2021); the end of the rotating shaft (2021) extends to the outer wall of the straight pipe (2011) and is provided with a stirring blade (222); The outer wall of the accommodating shell (203) is provided with jet ports (2031) in array, the end of the accommodating shell (203) is provided with a connecting ring (2032), the inner wall of the connecting ring (2032) is provided with a groove (2033), and the inner wall of the groove (2033) is provided with an opening (2034) in array; The inner wall of the accommodating shell (203) is provided with a transmission sleeve (2035), the outer wall of the transmission sleeve (2035) is provided with a protruding rod (2036), the end of the transmission sleeve (2035) is provided with a first joint (2037), the other end of the transmission sleeve (2035) is provided with an embolism plate (2038), the outer wall of the transmission sleeve (2035) is sleeved with a second elastic member (2039), and the end of the accommodating shell (203) is also provided with a connecting shell (20310); The driving sleeve (206) is sleeved on the outer wall of the rotating shaft (2021); a second joint (2061) is provided at the end of the driving sleeve (206); a hinged rod (2062) is provided at the outer wall of the driving sleeve (206); a push rod (2063) is hingedly connected to the end of the hinged rod (2062); and a slider (2064) is hingedly connected to one end of the push rod (2063); The pushing teeth (202) are inside the transport tube (201) and drive the stirring blades (222) located at the bottom of the driving shell (204) to rotate. When the stirring blades (2022) rotate, the water at the bottom is driven to move. When the dissolved oxygen water enters the interior of the accommodating shell (203) through the straight-through pipe (2011), the dissolved oxygen water impacts the embolic plate (2038), causing it to move downward inside the accommodating shell (203). At this time, the first joint (2037) and the second joint (2061) are in contact, driving the accommodating shell (203) to slowly rotate at the bottom of the straight-through pipe (2011), and the jet port (2031) rotates accordingly; The dissolved oxygen water sprayed outward by the water oxygenation device is firstly used to produce oxygen through an oxygen generator. A molecular sieve is installed inside the oxygen generator. The molecular sieve can selectively adsorb nitrogen in the air to allow oxygen to pass through. The molecular sieve is used to increase the oxygen content. The dissolved air pump then uses negative pressure to inhale gas, mixes the liquid and gas through the rotating pump impeller, and pressurizes and mixes oxygen and water in the pump. The mixed gas-liquid fluid is pressurized and finally produced into supersaturated dissolved oxygen water through the dissolved air pump.

2. The water oxygenation device for liquid phase mass transfer according to claim 1, characterized in that: An extension frame (1011) is provided at the lower end of the bracket (101), and an auxiliary frame (1012) is provided on the outer wall of the extension frame (1011).

3. The water oxygenation device for liquid phase mass transfer according to claim 2, characterized in that: A limiting ring (2012) is provided at the end of the straight-through pipe (2011), the end of the limiting ring (2012) extends to the inner wall of the groove (2033) and slidably cooperates therewith, a placement groove (2013) is provided on the outer wall of the limiting ring (2012), a first elastic member (2014) is provided on the inner wall of the placement groove (2013), and a round ball (2015) is provided on the outer side of the first elastic member (2014).

4. The water oxygenation device for liquid phase mass transfer according to claim 3, characterized in that: The inner wall of the drive shell (204) is provided with a drive tooth (2041); the end of the drive shell (204) is provided with a docking shell (2042); the fixed ring (205) is sleeved on the outer wall of the rotating shaft (2021); the outer wall of the fixed ring (205) is provided with a fixed rod (2051); the end of the fixed ring (205) is provided with an eccentric ring (2052); the outer wall of the eccentric ring (2052) is sleeved with a moving ring (2053); the outer wall of the moving ring (2053) is provided with a first moving rod (2054); the end of the first moving rod (2054) is hinged with a first moving block (2055); the outer wall of the moving ring (2053) is further provided with a second moving rod (2056); the end of the second moving rod (2056) is hinged with a second moving block (2057).

5. The water oxygenation device for liquid phase mass transfer according to claim 4, characterized in that: A swing ring (2058) is also provided at the end of the eccentric ring (2052), and a swing rod (2059) is provided on the outer wall of the swing ring (2058).

6. The water oxygenation device for liquid phase mass transfer according to claim 5, characterized in that: The outer wall of the slider (2064) is provided with a slide plate (2065), the end of the driving sleeve (206) is provided with a third elastic member (2066), the end of the third elastic member (2066) is provided with a straight plate (2067), the inner wall of the straight plate (2067) is provided with a slide groove (2068), and the outer wall of the slide plate (2065) extends to the inner wall of the slide groove (2068) and slidably cooperates therewith.

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