High-concentration dissolved oxygen generating device

Abstract

The utility model discloses a high-concentration dissolved oxygen generating device, and relates to the field of mechanical equipment manufacturing, the high-concentration dissolved oxygen generating device is characterized in that a water outlet is arranged at the top of a tank body, a hydraulic ejector, a gas-water mixing chamber and a spiral crusher are arranged in the tank body, a turbulator is arranged in the gas-water mixing chamber, and a water pump is arranged outside the tank body and is connected with a water inlet of the hydraulic ejector; the air inlet box is arranged on the outer side wall of the tank body and is connected with an air inlet of the hydraulic ejector, an outlet of the hydraulic ejector is connected with the air-water mixing chamber, and the peripheral surface of the hydraulic ejector is connected with a spiral crusher. High-speed jet flow pushed by a water pump enables a hydraulic ejector to form negative pressure vacuum to suck gas, the gas enters a gas-water mixing chamber and forms microbubbles under the shearing action of a turbulator, the contact area between the microbubbles and water is increased, and the dissolved oxygen concentration and the dissolved oxygen efficiency are improved; the micro-bubbles are pushed by hydraulic power to be crushed into nano-bubbles through tangency and collision of continuously-reduced line bodies of the spiral crusher, the standing time of the nano-bubbles in water is prolonged, and the utilization rate of dissolved oxygen is increased.

Description

Technical Field

[0001] The present application relates to the field of mechanical equipment manufacturing, and in particular to a high-concentration dissolved oxygen generating device. Background Art

[0002] Hydraulic dissolved air (HDA) is a method that exploits the physical properties of water and gas to dissolve gas. It typically involves pressurizing water to dissolve more gas, then suddenly reducing the pressure, releasing the dissolved gas from the water as tiny bubbles. This method has widespread applications in sewage treatment, water supply treatment, and river aeration.

[0003] Hydraulic dissolved air equipment typically consists of a dissolved air tank, where pressurized water comes into contact with the gas, promoting its dissolution. Currently, the tank typically includes a diffusion and mixing zone and a gradually contracting and pressurizing zone. An ejector is used to generate a high-speed water flow, thereby promoting gas dissolution. The primary dissolution of the gas in the water occurs instantaneously under the high pressure of the ejector, while the secondary dissolution occurs under the gradually increasing pressure of the gradually contracting and pressurizing zone. This secondary dissolution of the gas in the water supplements and continues the primary compressed dissolution. Although these two processes can increase the dissolved oxygen concentration in the water, the actual dissolved oxygen concentration remains low.

[0004] Therefore, how to increase the dissolved oxygen concentration in water and the utilization rate of dissolved oxygen is a problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of the present application is to provide a high-concentration dissolved oxygen generating device for solving the problem that the dissolved oxygen concentration of hydraulic dissolved air equipment is still not high.

[0006] In order to solve the above technical problems, the present application provides a high-concentration dissolved oxygen generating device, comprising: a tank, a water pump, a water inlet pipe, an air inlet box, an air inlet pipe, a hydraulic ejector, an air-water mixing chamber, a turbulator and a spiral crusher;

[0007] The diameter of the tank body decreases from the bottom of the tank body to the top of the tank body, and a water outlet is provided on the top of the tank body. The hydraulic ejector, the air-water mixing chamber and the spiral crusher are arranged in the tank body, the turbulator is arranged in the air-water mixing chamber, the water pump is placed outside the tank body, the water pump is connected to the water inlet of the hydraulic ejector through the water inlet pipe, the air inlet box is provided on the outer side wall of the tank body and is connected to the air inlet of the hydraulic ejector through the air inlet pipe, the outlet of the hydraulic ejector is connected to the air-water mixing chamber, and the outer peripheral surface of the hydraulic ejector is connected to the spiral crusher.

[0008] Optionally, the tank body is composed of a lower hemispherical tank body and an upper conical tank body, the conical tank body is a gradually contracting pressurization zone, the air-water mixing chamber and the spiral crusher are arranged in the hemispherical tank body, and the bottom outlet of the hydraulic ejector is connected to the top of the air-water mixing chamber.

[0009] Optionally, it also includes a first water inlet branch and a second water inlet branch, the first water inlet branch is respectively connected to the water inlet pipe and the gas-water mixing chamber, the second water inlet branch is respectively connected to the water inlet pipe and the gas-water mixing chamber, a first valve is provided on the water inlet pipe, a second valve is provided on the first water inlet branch, and a third valve is provided on the second water inlet branch.

[0010] Optionally, the turbulator is arranged in the middle of the air-water mixing chamber, and the outlet direction of the hydraulic ejector, the water outlet direction of the first water inlet branch pipe and the water outlet direction of the second water inlet branch pipe are all towards the center position of the turbulator.

[0011] Optionally, the turbulator includes a curved plate and a plurality of spoiler columns, the curved opening of the curved plate faces the bottom of the air-water mixing chamber, and the plurality of spoiler columns are distributed on the side of the curved plate facing the hydraulic ejector.

[0012] Optionally, one end of the spiral crusher is communicated with the air-water mixing chamber, and the other end of the spiral crusher is a spiral outlet.

[0013] Optionally, a plurality of spiral crushers are provided on the outer peripheral surface of the gas-water mixing chamber, and the plurality of spiral crushers are arranged in multiple layers of concentric circles with the bottom center of the gas-water mixing chamber.

[0014] Optionally, the bottom of the tank body is provided with a base and a vent, or the side wall of the tank body is provided with a base and a vent.

[0015] Optionally, a manhole is provided on the side wall of the tank body.

[0016] Optionally, a pressure gauge is provided at the conical tank body, and the pressure gauge is used to detect the pressure inside the conical tank body. A regulating valve is provided on the water outlet pipe connected to the water outlet.

[0017] The present application provides a high-concentration dissolved oxygen generating device, comprising: a tank body, a water pump, a water inlet pipe, an air inlet box, an air inlet pipe, a hydraulic ejector, an air-water mixing chamber, a turbulator and a spiral crusher; the diameter of the tank body decreases from the bottom to the top of the tank body, the top of the tank body is provided with a water outlet, the hydraulic ejector, the air-water mixing chamber and the spiral crusher are arranged in the tank body, the turbulator is arranged in the air-water mixing chamber, the water pump is arranged outside the tank body, the water pump is connected to the water inlet of the hydraulic ejector through the water inlet pipe, the air inlet box is arranged on the outer wall of the tank body and is connected to the air inlet of the hydraulic ejector through the air inlet pipe, the outlet of the hydraulic ejector is connected to the air-water mixing chamber, and the outer peripheral surface of the hydraulic ejector is connected to the spiral crusher. The first dissolution of oxygen in water is completed instantly under the high pressure of the hydraulic ejector. When the fluid rises from the bottom of the tank to the top of the tank, the diameter of the tank decreases, resulting in the fluid speed becoming faster and faster, and the unit pressure becoming higher and higher. Under the gradually increasing pressure state, oxygen dissolves in water for the second time. On this basis, the high-speed jet driven by the water pump causes the hydraulic ejector installed inside the tank to form a negative pressure vacuum to inhale gas, which enters the gas-water mixing chamber and forms microbubbles (μm level) under the shearing action of the turbulator. Driven by water, the microbubbles are broken into nanobubbles by tangency and collision with the continuously shrinking lines of the spiral crusher. Nanobubbles (nm level) create a huge contact area between air and water. Nanobubbles generate expansion force under water pressure, and the gas is instantly penetrated and dissolved in the water, completing the working process of complete oxygen enrichment of the water body; the generated microbubbles increase the contact area with water, increase the dissolved oxygen concentration and dissolved oxygen efficiency, and the dissolved oxygen efficiency can be increased from the original 65% to 100%; and the formed ultra-nano microbubbles, after dissolving in water, increase the residence time of ultra-micro nanobubbles in water, and the residence time can be increased from the original 10 hours to about 50 hours, greatly improving the utilization rate of dissolved oxygen.

[0018] In addition, the dissolved oxygen generated by the high-concentration dissolved oxygen generator consumes two-thirds less electricity than the dissolved oxygen generated by the traditional aeration method, and the energy-saving effect is very significant; the gas-to-water ratio of the dissolved oxygen in the high-concentration dissolved oxygen generator is 0.072m 3 :1.0m 3 , does not produce aerosol secondary pollution, and is environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 The structure of a vertical high-concentration dissolved oxygen generator provided in an embodiment of the present application;

[0021] Figure 2 The structure of a horizontal high-concentration dissolved oxygen generator provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of a high-concentration dissolved oxygen generator with multiple pumps provided in an embodiment of the present application;

[0023] Figure 4 A partial diagram of a high-concentration dissolved oxygen generating device provided in an embodiment of the present application;

[0024] Figure 5 A schematic diagram of the distribution of a spiral crusher provided in an embodiment of the present application;

[0025] The accompanying drawings are marked as follows: 1-tank body, 2-water pump, 3-water inlet pipe, 4-air inlet box, 5-air inlet pipe, 6-hydraulic ejector, 7-air-water mixing chamber, 8-turbulator, 9-spiral crusher, 10-first water inlet branch, 11-second water inlet branch, 12-first valve, 13-second valve, 14-third valve, 15-base, 16-vent, 17-pressure gauge, 18-water outlet, 19-regulating valve, 20-manhole, 801-arc plate, 802-spoiler column, 901-spiral outlet. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The core of this application is to provide a high-concentration dissolved oxygen generator for increasing the dissolved oxygen concentration in water and the utilization rate of dissolved oxygen.

[0028] The high-concentration dissolved oxygen generator is invented by utilizing the different characteristics of water that cannot be compressed but can be permeated, and gas that can be compressed and can generate expansion force. The gas is mixed in the water and pressurized to increase the speed and concentration of the gas dissolving in the water. The device has vertical cone and horizontal cone structure.

[0029] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0030] Figure 1 The structure of a vertical high-concentration dissolved oxygen generator provided in an embodiment of the present application is as follows: Figure 2The structure of a horizontal high concentration dissolved oxygen generator provided in the embodiment of the present application is as follows: Figure 1 and Figure 2 As shown, the high-concentration dissolved oxygen generating device includes: a tank body 1, a water pump 2, a water inlet pipe 3, an air inlet box 4, an air inlet pipe 5, a hydraulic ejector 6, an air-water mixing chamber 7, a turbulator 8 and a spiral crusher 9; the diameter of the tank body 1 decreases from the bottom of the tank body 1 to the top of the tank body 1, and the top of the tank body 1 is provided with a water outlet. The hydraulic ejector 6, the air-water mixing chamber 7 and the spiral crusher 9 are arranged in the tank body 1, and the turbulator 8 is arranged in the air-water mixing chamber 7. The water pump 2 is external to the tank body 1, and the water pump 2 is connected to the water inlet of the hydraulic ejector 6 through the water inlet pipe 3. The air inlet box 4 is provided on the outer wall of the tank body 1 and is connected to the air inlet of the hydraulic ejector 6 through the air inlet pipe 5. The outlet of the hydraulic ejector 6 is connected to the air-water mixing chamber 7, and the outer peripheral surface of the hydraulic ejector 6 is connected to the spiral crusher 9.

[0031] The diameter of the tank body 1 in the embodiment of the present application decreases from the bottom of the tank body 1 to the top of the tank body 1. Specifically, the tank body 1 is composed of a lower hemispherical tank body 1 and an upper conical tank body 1. The conical tank body 1 is a gradually shrinking pressurized area. The air-water mixing chamber 7 and the spiral crusher 9 are arranged in the hemispherical tank body 1. The bottom outlet of the hydraulic ejector 6 is connected to the top of the air-water mixing chamber 7; the water outlet is arranged at the top of the conical tank body 1, and the mixed fluid can only rise into the conical tank body 1. The rising space of the fluid in the conical tank body 1 is getting smaller and smaller. Under the condition of unchanged flow rate, the fluid speed will become faster and faster, the unit pressure will become higher and higher, and the oxygen will be squeezed and dissolved again; the first dissolution of oxygen in water is completed instantly under the high-pressure state of the hydraulic ejector 6, and the second dissolution of oxygen in water is carried out under the gradually increasing pressure state in the conical tank body 1. In addition, the design purposes of the hemispherical tank body 1 and the conical tank body 1 are: to help reduce the flow rate of the water flow, prolong the gas-liquid contact time, and thus improve the dissolution efficiency of oxygen in water; this structure helps to form turbulence, increase the gas-liquid contact area, promote the dissolution of oxygen, and improve the gas dissolution efficiency; avoid the formation of dead water areas in the tank, ensure that the liquid flows evenly throughout the tank, and improve the mass transfer efficiency; the structure of the hemispherical tank body 1 and the conical tank body 1 is relatively stable in mechanics, can withstand higher pressures, and is suitable for use as a pressure vessel; this structure also helps to reduce the accumulation of dirt and biofilm, facilitates cleaning and maintenance, and ensures the long-term and effective operation of the high-concentration dissolved oxygen generator.

[0032] The embodiment of the present application does not specifically limit the number of water pumps 2, and multiple water pumps 2 can be used. Figure 3 A schematic diagram of a high concentration dissolved oxygen generator with multiple pumps provided in an embodiment of the present application is shown in FIG. Figure 3As shown, there are two water pumps 2 connected to the hydraulic ejector 6, and four groups of water pumps 2 connected to the air-water mixing chamber 7, wherein each group of water pumps 2 includes two parallel water pumps 2. Single pump operation of the high concentration dissolved oxygen generator of the present application (flow rate Q = 300m 3 / h) when the high concentration of dissolved oxygen produced is 11960g / h, which can dilute the oxygenated receiving water volume (based on the oxygen content of 7g / m 3 Total: 41005m 3 / day, if multiple pumps (10 pumps) are running, the total amount of dissolved oxygen is the corresponding multiple of the number of pumps added, and the amount of water that can be diluted and oxygenated per day is: 410050m 3 / day. The device has an extremely powerful oxygenation capacity.

[0033] like Figure 1 As shown, the water inlet of the hydraulic ejector 6 is arranged at the top, the air inlet is arranged at a position near the top of the side wall of the hydraulic ejector 6, and the hydraulic ejection outlet is arranged at the bottom.

[0034] A high-concentration dissolved oxygen generating device provided in an embodiment of the present application includes: a tank body 1, a water pump 2, a water inlet pipe 3, an air inlet box 4, an air inlet pipe 5, a hydraulic ejector 6, an air-water mixing chamber 7, a turbulator 8 and a spiral crusher 9; the diameter of the tank body 1 decreases from the bottom of the tank body 1 to the top of the tank body 1, and the top of the tank body 1 is provided with a water outlet. The hydraulic ejector 6, the air-water mixing chamber 7 and the spiral crusher 9 are arranged in the tank body 1, and the turbulator 8 is arranged in the air-water mixing chamber 7. The water pump 2 is external to the tank body 1, and the water pump 2 is connected to the water inlet of the hydraulic ejector 6 through the water inlet pipe 3. The air inlet box 4 is provided on the outer wall of the tank body 1 and is connected to the air inlet of the hydraulic ejector 6 through the air inlet pipe 5. The outlet of the hydraulic ejector 6 is connected to the air-water mixing chamber 7, and the outer peripheral surface of the hydraulic ejector 6 is connected to the spiral crusher 9. The first dissolution of oxygen in water is completed instantly under the high pressure state of the hydraulic ejector 6. When the fluid rises from the bottom of the tank body 1 to the top of the tank body 1, the diameter of the tank body 1 decreases, resulting in the fluid speed becoming faster and faster, and the unit pressure becoming higher and higher. Under the gradually increasing pressure state, oxygen dissolves in water for the second time. On this basis, the high-speed jet driven by the water pump 2 in this application causes the hydraulic ejector 6 installed inside the tank body 1 to form a negative pressure vacuum to inhale gas, and enter the gas-water mixing chamber 7 to form microbubbles (μm level) under the shearing action of the turbulator 8. The microbubbles are pushed by the water force and tangent and collide with the continuously smaller linear bodies of the spiral crusher 9. The nanobubbles are broken into nanobubbles (nm level), creating a huge contact area between air and water. The nanobubbles generate expansion force under water pressure, and the gas is instantly penetrated and dissolved in the water, completing the working process of complete oxygen enrichment of the water body; the generated microbubbles increase the contact area with water, increase the dissolved oxygen concentration and dissolved oxygen efficiency, and the dissolved oxygen efficiency can be increased from the original 65% to 100%; and the formed ultra-nano microbubbles, after dissolving in water, increase the residence time of the ultra-nano bubbles in water, and the residence time can be increased from the original 10 hours to about 50 hours, greatly improving the utilization rate of dissolved oxygen.

[0035] In addition, the dissolved oxygen generated by the high-concentration dissolved oxygen generator consumes two-thirds less electricity than the dissolved oxygen generated by the traditional aeration method, and the energy-saving effect is very significant; the gas-to-water ratio of the dissolved oxygen in the high-concentration dissolved oxygen generator is 0.072m 3 :1.0m 3 , does not produce aerosol secondary pollution, and is environmentally friendly.

[0036] Based on the above embodiments, the embodiments of the present application also include a first water inlet branch 10 and a second water inlet branch 11. The first water inlet branch 10 is respectively connected to the water inlet pipe 3 and the air-water mixing chamber 7, and the second water inlet branch 11 is respectively connected to the water inlet pipe 3 and the air-water mixing chamber 7. A first valve 12 is provided on the water inlet pipe 3, a second valve 13 is provided on the first water inlet branch 10, and a third valve 14 is provided on the second water inlet branch 11.

[0037] Oxygen is dissolved in water, and the gas-water ratio is 0.072m 3 :1.0m 3 Without a certain amount of water, a certain amount of gas cannot be dissolved. Since the amount of water sucked into the gas by the hydraulic ejector 6 through the Venturi principle is insufficient to dissolve the incoming gas, the amount of water must be increased. The first water inlet branch pipe 10 and the second water inlet branch pipe 11 are used to replenish the water. In addition, by providing the first water inlet branch pipe 10 and the second water inlet branch pipe 11, two independent water flow paths can be formed between the water inlet pipe 3 and the gas-water mixing chamber 7. Each branch pipe is equipped with a valve, so that the water flow of the two branches can be controlled separately, achieving the following purposes: the amount of water entering the gas-water mixing chamber 7 can be more flexibly adjusted through the two branches to meet different treatment requirements; if one branch pipe or valve fails, the other branch pipe can be used to continue operating the system, thereby increasing the safety and reliability of the system.

[0038] Based on the above embodiments, the turbulator 8 of the embodiment of the present application is arranged in the middle of the air-water mixing chamber 7, and the outlet direction of the hydraulic ejector 6, the water outlet direction of the first water inlet branch 10 and the water outlet direction of the second water inlet branch 11 are all toward the center position of the turbulator 8.

[0039] The embodiment of the present application does not specifically limit the structure of the turbulator 8. Specifically, the turbulator 8 includes a curved plate 801 and a plurality of spoiler columns 802. The arc opening of the curved plate 801 faces the bottom of the gas-water mixing chamber 7. The curved plate 801 is provided with a plurality of spoiler columns 802 on the side facing the hydraulic ejector 6. The embodiment of the present application does not specifically limit the spoiler columns 802. The spoiler columns 802 can be nails, with a plurality of nails spaced apart on one side of the curved plate 801. The curved plate 801 and the spoiler columns 802 can destroy the laminar flow state of the water flow, form a complex turbulent flow, increase the turbulence of the water flow, and thus improve the gas-liquid contact area and mass transfer efficiency. The outlet direction of the hydraulic ejector 6, the outlet direction of the first water inlet branch 10, and the outlet direction of the second water inlet branch 11 are all directed toward the center of the turbulator 8. The purpose of the design is that: by aligning the outlet direction of the hydraulic ejector 6 with the center of the turbulator 8, the energy of the water flow can be concentrated, thereby forming strong turbulence in the central area, which helps to improve the efficiency of gas-liquid mixing; the water flow directly entering the center of the turbulator 8 can be combined with the vortex motion generated by the turbulator 8 to further enhance gas-liquid mixing, so that the gas dissolved in the water is more evenly dispersed; the concentrated water flow contributes to the uniform formation and distribution of bubbles, because the strong turbulence in the center of the turbulator 8 can make it easier for the dissolved gas to be released from the water to form tiny bubbles; the water flow directly impacting the center of the turbulator 8 can increase the opportunity for gas-liquid contact and improve mass transfer efficiency, which is particularly important for sewage treatment processes that require a large amount of oxygen transfer; this design can ensure that the water flow is evenly distributed throughout the gas-water mixing chamber 7, avoiding local dead zones or uneven water flow, thereby improving the efficiency of the entire system; by precisely controlling the direction and intensity of the water flow, energy loss during system operation can be reduced, and the energy efficiency of the system can be improved.

[0040] Based on the above embodiments, Figure 4 A partial diagram of a high concentration dissolved oxygen generating device provided in an embodiment of the present application, such as Figure 4 As shown, one end of the spiral crusher 9 in the embodiment of the present application is connected to the air-water mixing chamber 7 , and the other end of the spiral crusher 9 is a spiral outlet 901 .

[0041] One end of the spiral breaker 9 is connected to the gas-water mixing chamber 7, perhaps by a threaded connection, while the other end features a spiral outlet 901. This design effectively breaks up microbubbles into smaller, more stable nanobubbles (nanometer-scale), thereby improving gas solubility and mass transfer efficiency. This design utilizes hydraulic forces to propel microbubbles through the spiral breaker 9, where they undergo a continuous process of tangency and collision, resulting in microbubble fragmentation. Nanobubbles, due to their tiny size, have a larger specific surface area, increasing the gas-liquid contact area and improving gas mass transfer efficiency. Nanobubbles rise slowly in water, meaning they spend more time in contact with water, further enhancing gas dissolution and mass transfer. Nanobubbles possess unique properties, such as a large specific surface area, slow rise, concentrated surface charge, and excellent stability. These properties enhance their solubility in water and enable more effective gas transfer.

[0042] Based on the above embodiments, Figure 5 This is a distribution diagram of a spiral crusher 9 provided in an embodiment of the present application. A plurality of spiral crushers 9 are provided on the outer peripheral surface of the air-water mixing chamber 7 in the embodiment of the present application. The plurality of spiral crushers 9 are arranged in multiple layers of concentric circles with the bottom center of the air-water mixing chamber 7.

[0043] The multiple spiral breakers 9 in the present embodiment are arranged in multiple concentric circles around the bottom center of the air-water mixing chamber 7. The purpose of the concentric arrangement of the spiral breakers 9 is to ensure uniform nanobubble generation within the hemispherical tank 1. Multiple spiral breakers 9 can operate simultaneously, improving the processing capacity and efficiency of the entire device.

[0044] Based on the above embodiment, the bottom of the tank body 1 of the embodiment of the present application is provided with a base 15 and a vent 16 , or the side wall of the tank body 1 is provided with a base 15 and a vent 16 .

[0045] Figure 1 In the vertical structure, the base 15 and the vent 16 are provided at the bottom of the tank body 1; Figure 2In the horizontal structure, the base 15 and the vent 16 are provided on the side wall of the tank body 1. The embodiment of the present application provides high-concentration dissolved oxygen generators with both vertical and horizontal structures, which can be applied to different usage scenarios. The vertical structure is generally 7-12 meters in height, and the number of supporting water pumps 2 is limited by the peripheral area of the cone, and the amount of dissolved oxygen produced is also limited; the improved shape adds a horizontal structure, and the maximum height (diameter) is only 4.4 meters (if it is measured in vertical form, its height is more than 25 meters, which is unimaginable). The maximum oxygenated receiving water volume of the vertical high-concentration dissolved oxygen generator is increased from the original 164,000 cubic meters per day to the maximum oxygenated receiving water volume of the horizontal high-concentration dissolved oxygen generator. It is increased to 410,000 cubic meters per day. In addition, after the improvement, the original vertical structure is only suitable for supplying oxygen to sewage treatment plants (equipment). The application scope of the horizontal structure has been expanded to the horizontal movable in-situ ecological restoration function of large rivers, lakes, and large rivers. The horizontal high-concentration dissolved oxygen generator can be installed on a floating movable platform (e.g., a ship), and is particularly suitable for in-situ restoration of the water ecological environment of black and smelly wide rivers, lakes, and reservoirs.

[0046] Based on the above embodiment, the side wall of the tank body 1 of the present embodiment is provided with a manhole 20. A pressure gauge 17 is provided on the conical tank body 1 for detecting the pressure inside the conical tank body 1, and a regulating valve 19 is provided on the water outlet pipe 18 connected to the water outlet.

[0047] The embodiment of the present application is provided with a manhole 20 on the side wall of the tank body 1. The manhole 20 allows operators to enter the tank for cleaning, inspection and maintenance work, which is very important for ensuring the normal operation of the equipment and timely handling of faults. By setting a pressure gauge 17 to detect the pressure inside the conical tank body 1, the flow of the regulating valve 19 can be adjusted according to the pressure data of the pressure gauge 17, which can ensure that the pressure inside the conical tank body 1 is within a reasonable pressure range, which is conducive to the expansion force generated by the nanobubbles under constant water pressure, and the gas is instantly penetrated and dissolved in the water. Usually, the pressure inside the conical tank body 1 is adjusted to 0.3Mpa. When 1 cubic meter of water is subjected to a gauge pressure of 0.3Mpa at a water temperature of 20°C, 72 liters of oxygen can be dissolved, that is, 72LO2 / m 3 As the density of oxygen in water is 1.429, based on an oxygen purity of 93%, the dissolved oxygen (DO) concentration generated is 72×0.93×1.429=95 mg / L, and the oxygen driving force is 95 mOsm (osmotic pressure: osmole). Using a gauge pressure of 0.3 MPa in the conical tank 1 is the most energy-efficient option.

[0048] The above is a detailed introduction to the high-concentration dissolved oxygen generator provided by the present application. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

[0049] It should also be noted that, in this specification, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

Claims

1. A high concentration dissolved oxygen generator, characterized in that: include: Tank body (1), water pump (2), water inlet pipe (3), air inlet box (4), air inlet pipe (5), hydraulic ejector (6), air-water mixing chamber (7), turbulator (8) and spiral crusher (9); The diameter of the tank body (1) decreases from the bottom of the tank body (1) to the top of the tank body (1), and a water outlet is provided on the top of the tank body (1). The hydraulic ejector (6), the air-water mixing chamber (7) and the spiral crusher (9) are arranged in the tank body (1), and the turbulator (8) is arranged in the air-water mixing chamber (7). The water pump (2) is external to the tank body (1), and the water pump (2) is connected to the water inlet of the hydraulic ejector (6) through the water inlet pipe (3). The air inlet box (4) is provided on the outer wall of the tank body (1) and is connected to the air inlet of the hydraulic ejector (6) through the air inlet pipe (5). The outlet of the hydraulic ejector (6) is connected to the air-water mixing chamber (7), and the outer peripheral surface of the hydraulic ejector (6) is connected to the spiral crusher (9).

2. The high concentration dissolved oxygen generator according to claim 1, characterized in that The tank body (1) is composed of a lower hemispherical tank body (1) and an upper conical tank body (1); the conical tank body (1) is a gradually contracting pressurized area; the air-water mixing chamber (7) and the spiral crusher (9) are arranged in the hemispherical tank body (1); and the bottom outlet of the hydraulic ejector (6) is connected to the top of the air-water mixing chamber (7).

3. The high concentration dissolved oxygen generator according to claim 1, characterized in that The invention also includes a first water inlet branch pipe (10) and a second water inlet branch pipe (11), wherein the first water inlet branch pipe (10) is connected to the water inlet pipe (3) and the gas-water mixing chamber (7), respectively, and the second water inlet branch pipe (11) is connected to the water inlet pipe (3) and the gas-water mixing chamber (7), respectively. The water inlet pipe (3) is provided with a first valve (12), the first water inlet branch pipe (10) is provided with a second valve (13), and the second water inlet branch pipe (11) is provided with a third valve (14).

4. The high concentration dissolved oxygen generator according to claim 3, characterized in that: The turbulator (8) is arranged in the middle of the air-water mixing chamber (7), and the outlet direction of the hydraulic ejector (6), the water outlet direction of the first water inlet branch pipe (10), and the water outlet direction of the second water inlet branch pipe (11) are all oriented toward the center of the turbulator (8).

5. The high concentration dissolved oxygen generator according to claim 2, characterized in that: The turbulator (8) comprises an arc-shaped plate (801) and a plurality of flow-disturbing columns (802), wherein the arc opening of the arc-shaped plate (801) faces the bottom of the air-water mixing chamber (7), and the plurality of flow-disturbing columns (802) are distributed on the side of the arc-shaped plate (801) facing the hydraulic ejector (6).

6. The high concentration dissolved oxygen generator according to claim 1, characterized in that: One end of the spiral crusher (9) is connected to the air-water mixing chamber (7), and the other end of the spiral crusher (9) is a spiral outlet (901).

7. The high concentration dissolved oxygen generator according to claim 6, characterized in that: The outer peripheral surface of the gas-water mixing chamber (7) is provided with a plurality of spiral crushers (9), and the plurality of spiral crushers (9) are arranged in multiple layers of concentric circles with the bottom center of the gas-water mixing chamber (7).

8. The high concentration dissolved oxygen generator according to claim 1, characterized in that: The bottom of the tank body (1) is provided with a base (15) and a vent (16), or the side wall of the tank body (1) is provided with a base (15) and a vent (16).

9. The high concentration dissolved oxygen generator according to claim 1, characterized in that: A manhole (20) is provided on the side wall of the tank body (1).

10. The high concentration dissolved oxygen generator according to claim 2, characterized in that: The conical tank body (1) is provided with a pressure gauge (17), and the pressure gauge (17) is used to detect the pressure inside the conical tank body (1). A regulating valve (19) is provided on the water outlet pipe (18) connected to the water outlet.

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