Venturi conduit assembly and marine artificial upwelling device

Abstract

The utility model relates to the technical field of marine artificial upwelling equipment, provide a kind of venturi pipeline assembly and marine artificial upwelling device, the component includes venturi pipe, helical flow guide, water inlet pipe and water outlet pipe.The venturi pipeline assembly provided by the utility model is sequentially connected by setting contraction pipe section, throat pipe section and expansion pipe section along water flow direction, and helical flow guide is arranged in venturi pipe;When water flows through contraction pipe section, flow rate increases, pressure decreases, negative pressure zone is formed at throat pipe section, can assist pump machine to suck water flow, effectively reduce the energy consumption of pump machine;And the helical flow guide in throat pipe section can also give water flow moderate rotation, and then arrange flow state, inhibit vortex and turbulence generation, water flow with rotary energy enters the expansion pipe section of venturi pipe, flow rate will reduce, kinetic energy of water flow is effectively converted into pressure energy, to recover part of pressure, directly reduce the load of subsequent pump machine, reduce the energy consumption of pump machine, improve efficiency.

Description

Technical Field

[0001] This utility model relates to the field of marine artificial upwelling equipment technology, and in particular to a Venturi pipe assembly and a marine artificial upwelling device. Background Technology

[0002] To achieve the national "dual carbon" goals, using artificial upwelling technology to bring nutrient-rich deep-sea water to the surface has become an important way to promote increased marine fisheries production and improve marine carbon sequestration efficiency.

[0003] Currently, artificial upwelling devices in the ocean generally use pumps to pump deep seawater to the sea surface through ordinary pipelines.

[0004] However, in related marine artificial upwelling technologies, the pumps need to overcome huge hydrostatic pressure and pipeline friction resistance to do work, and the high-speed water flow generates turbulence and vortices in the pipeline, resulting in significant fluid energy loss, leading to problems of high energy consumption and low efficiency. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a Venturi pipe assembly and an artificial ocean upwelling device to solve at least one of the above-mentioned technical defects in the prior art, so that during artificial ocean upwelling operations, turbulence or vortex can be converted into rotational kinetic energy and pressure energy, thereby reducing the load and energy consumption of the pump and improving efficiency.

[0006] To achieve the above objectives, the first aspect of this utility model provides a Venturi conduit assembly, comprising: A Venturi tube has a contraction section, a throat section, and an expansion section connected sequentially along the water flow direction. The cross-sectional area of ​​the contraction section gradually decreases along the water flow direction, and the cross-sectional area of ​​the expansion section gradually increases along the water flow direction. A spiral guide is disposed inside the venturi tube and passes sequentially through the contraction section, the throat section, and the expansion section along the water flow direction; The inlet pipe has a first end for connecting to seawater, and the inlet of the contraction pipe section is connected to the inlet pipe. The outlet pipe has a first end connected to the outlet of the expansion pipe section and a second end connected to the marine artificial upwelling device.

[0007] Furthermore, the spiral guide is rotatably connected inside the venturi tube.

[0008] Furthermore, the spiral guide is coaxially arranged with the contraction section, the throat section, and the expansion section.

[0009] Furthermore, both the contraction section and the expansion section are conical, with the cone angle of the contraction section being 15° to 20° and the cone angle of the expansion section being 5° to 10°.

[0010] Furthermore, the helix angle of the spiral guide is 40° to 50°.

[0011] Furthermore, the Venturi tube, the spiral guide, the inlet pipe, and the outlet pipe are all covered with a seawater corrosion-resistant layer.

[0012] Furthermore, the inlet pipe and the outlet pipe are arranged parallel to each other, and the venturi tube is located between the inlet pipe and the outlet pipe. The second end of the inlet pipe extends outward for connection to an artificial ocean upwelling device. The first end of the outlet pipe is connected to the outlet of the expansion pipe section via a bend.

[0013] To achieve the above objectives, the second aspect of this utility model also provides a marine artificial upwelling device, including a hull, a propulsion mechanism, a power supply mechanism, a pump, and a Venturi tube assembly as described in any one of the above. The propulsion mechanism is fixed to the bottom of the hull and is adapted to propel the hull. The power supply mechanism is electrically connected to the pump and the propulsion mechanism; The second end of the outlet pipe is connected to the pump, and the second end of the inlet pipe is connected to the hull.

[0014] Furthermore, the power supply mechanism includes a solar panel, a panel base, and a vertical axis wind turbine. The base of the power generation panel is fixed to the top of the hull, and the solar power generation panel is mounted on the base of the power generation panel. The solar power generation panel is electrically connected to the pump. The vertical axis wind turbine is electrically connected to the pump.

[0015] Furthermore, the propulsion mechanism includes a thruster and blades, the blades being rotatably mounted on the thruster. The hull also includes an anchor and a drain pipe, with one end of the drain pipe connected to seawater and the other end connected to the hull.

[0016] The Venturi pipe assembly provided by this utility model consists of a contraction section, a throat section, and an expansion section connected sequentially along the water flow direction. A spiral guide is installed inside the Venturi pipe. The inlet pipe guides seawater into the contraction section, and the outlet pipe connects the expansion pipe to the pump of the marine artificial upwelling device. When the seawater flows through the contraction section of the Venturi pipe, the flow velocity increases and the pressure decreases, creating a negative pressure zone at the throat section. This negative pressure effect assists the pump of the marine artificial upwelling device in drawing the water flow, effectively reducing the pump's energy consumption. Furthermore, the spiral guide inside the throat section imparts a moderate rotation to the water flow, thereby regulating the flow pattern and suppressing the generation of vortices and turbulence. The water flow carrying rotational energy enters the expansion section of the Venturi pipe, where the flow velocity decreases, and the kinetic energy of the water flow is effectively converted into pressure energy, thus restoring some pressure. This directly reduces the workload of the subsequent pump, lowers the pump's energy consumption, and improves efficiency.

[0017] The marine artificial upwelling device provided by this utility model, because it includes the aforementioned Venturi tube assembly, also possesses all the advantages of the aforementioned assembly. That is, this device can also increase the flow velocity and decrease the pressure of seawater when it passes through the contraction section of the Venturi tube, forming a negative pressure zone at the throat section of the Venturi tube. The negative pressure effect can assist the pump of the marine artificial upwelling device in pumping the water flow, effectively reducing the energy consumption of the pump. Moreover, the spiral guide component installed in the throat section can also give the water flow a moderate rotation, thereby regulating the flow pattern and suppressing the generation of vortices and turbulence. When the water flow with rotational energy enters the expansion section of the Venturi tube, the flow velocity will decrease, and the kinetic energy of the water flow will be effectively converted into pressure energy, thereby restoring some of the pressure, directly reducing the workload of the subsequent pump, reducing the energy consumption of the pump, and improving efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of the marine artificial upwelling device provided in this embodiment of the utility model; Figure 2 for Figure 1 A diagram from another perspective; Figure 3 A schematic diagram of the overall structure of the Venturi pipe assembly provided in this embodiment of the utility model; Figure 4 A schematic diagram of the spiral guide component installed in the Venturi tube structure provided in this embodiment of the utility model; Figure 5 A schematic diagram of the spiral guide structure in the Venturi pipe assembly provided in this embodiment of the utility model.

[0020] Figure label: 100. Venturi tube; 110. Contraction section; 120. Throat section; 130. Dilation section; 140. Bending head; 200. Spiral guide component; 300. Water inlet pipe; 400. Water outlet pipe; 500. Hull; 510. Anchor; 520. Drainage pipe; 600. Propulsion mechanism; 610. Thruster; 620. Blade; 700. Power supply mechanism; 710. Solar panel; 720. Panel base; 730. Vertical axis wind turbine; 800. Pump. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0023] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0025] The following is combined Figures 1 to 5 The embodiments of this utility model will be described below. It should be understood that the following description is merely an illustrative embodiment of this utility model and does not constitute any limitation on this utility model.

[0026] The Venturi pipe assembly provided in this embodiment includes a Venturi pipe 100, a spiral guide 200, an inlet pipe 300, and an outlet pipe 400.

[0027] The Venturi tube 100 has a contraction section 110, a throat section 120, and an expansion section 130 connected sequentially along the water flow direction. The cross-sectional area of ​​the contraction section 110 gradually decreases along the water flow direction, while the cross-sectional area of ​​the expansion section 130 gradually increases along the water flow direction. This can create a Venturi effect, causing negative pressure to form in the throat section 120, which has a suction assist effect on the water flow. When applied to an artificial upwelling device in the ocean, it can effectively reduce the load and energy consumption of the pump connected to this component.

[0028] The spiral guide 200 is installed inside the venturi tube 100. The spiral guide 200 passes sequentially through the contraction section 110, the throat section 120, and the expansion section 130 along the water flow direction. The spiral guide 200 can be a spiral guide rod or a spiral guide rib. It can apply circumferential constraint to the water flow, convert some of the disordered turbulent kinetic energy into ordered rotational kinetic energy, and further convert it into pressure energy in the expansion section 130 of the venturi tube 100. This reduces fluid loss and can significantly increase the pumping capacity and head of the pump connected to the component under the same input power.

[0029] The first end of the inlet pipe 300 is used to connect to seawater and can access deep seawater. The inlet of the contraction section 110 in the venturi tube 100 is connected to the inlet pipe 300.

[0030] The first end of the outlet pipe 400 is connected to the outlet of the expansion section 130 in the Venturi tube 100, and the second end of the outlet pipe 400 is connected to the marine artificial upwelling device. For example, the second end of the outlet pipe 400 can be connected to the pump of the marine artificial upwelling device. When the marine artificial upwelling device equipped with this Venturi tube assembly is operating at sea, the pump is started, and seawater from the seabed can enter through the first end of the inlet pipe 300, pass through the contraction section 110, the throat section 120 and the expansion section 130 of the Venturi tube 100 in sequence, and then flow through the second end of the outlet pipe 400 to the pump. The pump can discharge the seawater to a preset location to realize marine artificial upwelling.

[0031] It is understood that the Venturi pipe assembly provided in the embodiments of this utility model comprises a contraction section 110, a throat section 120, and an expansion section 130 connected sequentially along the water flow direction, and a spiral guide 200 is provided inside the Venturi pipe 100. The inlet pipe 300 guides seawater into the contraction section 110, and the outlet pipe 400 connects the expansion pipe to the pump of the marine artificial upwelling device. This causes the seawater flow to increase in velocity and decrease in pressure when passing through the contraction section 110 of the Venturi pipe 100, and at the throat section 120 of the Venturi pipe 100... The formation of a negative pressure zone allows the pumps in the marine artificial upwelling device to draw water, effectively reducing pump energy consumption. Furthermore, the spiral guide 200 installed in the throat section 120 imparts appropriate rotation to the water flow, thereby regulating the flow pattern and suppressing the generation of vortices and turbulence. When the water flow carrying rotational energy enters the expansion section 130 of the Venturi tube 100, the flow velocity decreases, and the kinetic energy of the water flow is effectively converted into pressure energy, thereby restoring some pressure, directly reducing the workload of the subsequent pumps, reducing pump energy consumption, and improving efficiency.

[0032] Combination Figure 1 , Figure 2 and Figure 4 In some embodiments of this invention, the spiral guide 200 is rotatably connected within the Venturi tube 100. For example, two bearings are arranged within the Venturi tube 100 along its own axial direction. The first bearing is fixed within the contraction section 110, and the second bearing is fixed within the expansion section 130. The first end of the spiral guide 200 is rotatably connected to the first bearing, and the second end of the spiral guide 200 is rotatably connected to the second bearing. This reduces the relative velocity between the rotating spiral guide 200 and the water flow, thereby reducing flow resistance and further reducing the pump load and energy consumption.

[0033] Combination Figure 4In some embodiments of this utility model, the spiral guide 200 is coaxially arranged with the contraction section 110, the throat section 120 and the expansion section 130; this makes the spiral guide 200 more uniformly stressed, ensuring that the "rotational force" applied to the water flow is uniform and symmetrical, avoiding the generation of eccentric vortices, stabilizing the rotating flow, making the water flow state more orderly, and minimizing energy dissipation.

[0034] Combination Figures 3 to 5 In some embodiments of this utility model, both the contraction section 110 and the expansion section 130 are conical; the cone angle α of the contraction section 110 is 15° to 20°, for example, the cone angle α of the contraction section 110 can be 16.2° or 17.2°. Within this angle range, the cone angle α of the contraction section 110 can prevent the water flow from being too violent or too gentle when it enters the contraction section 110 of the Venturi tube 100, so that the water flow can perfectly fit the pipe wall of the contraction section 110, and its acceleration process is the smoothest, the energy conversion efficiency is higher, and the energy saving effect is better.

[0035] The cone angle of the expansion section 130 is 5° to 10°. For example, the cone angle β of the expansion section 130 can be 7.9° or 8.9°. Within this angle range, the cone angle β of the expansion section 130 can prevent strong flow separation or excessive frictional contact area between the water flow and the pipe wall of the expansion section 130 when the water flow enters the expansion section 130 of the Venturi tube 100. This avoids excessive energy loss of the water flow and ensures that the water flow always remains in an attached state within the expansion section 130 without separation, thus achieving a higher pressure recovery coefficient.

[0036] In addition, combined Figures 3 to 5 In some embodiments of this utility model, the helix angle γ of the helical guide 200 is 40° to 50°; for example, the helix angle γ of the helical guide 200 can be 45° or 47°. Within this angle range, the helix angle γ of the helical guide 200 can prevent excessive circumferential constraint on the water flow and prevent excessive rotational speed of the water flow, which would result in excessive centrifugal force. This reduces flow resistance, allowing the water flow to form a moderately strong and more stable swirling flow field in the throat section 120 of the venturi tube 100. This maximizes the conversion of turbulent kinetic energy into rotational kinetic energy without generating significant additional resistance to the water flow, thus maximizing the efficiency of flow field management and energy recovery.

[0037] Combination Figure 1 and Figure 3In some embodiments of this utility model, the Venturi tube 100, the spiral guide component 200, the inlet pipe 300, and the outlet pipe 400 are all covered with a seawater corrosion-resistant layer. For example, the surfaces of the Venturi tube 100, the spiral guide component 200, the inlet pipe 300, and the outlet pipe 400 are electroplated with corrosion-resistant metal layers such as nickel and chromium; or, fiberglass, special stainless steel, or other materials are used to make an inner lining layer before covering the relevant components; of course, the Venturi tube 100, the spiral guide component 200, the inlet pipe 300, and the outlet pipe 400 can also be directly made of fiberglass or special stainless steel. This effectively prevents seawater corrosion, extends the lifespan of the Venturi pipe assembly, and reduces maintenance costs.

[0038] Combination Figure 1 and Figure 2 In some embodiments of this utility model, the inlet pipe 300 and the outlet pipe 400 are arranged in parallel, and the venturi tube 100 is arranged between the inlet pipe 300 and the outlet pipe 400.

[0039] The second end of the inlet pipe 300 extends outward to connect to the marine artificial upwelling device, for example, the second end of the inlet pipe 300 extends outward to the pump body of the marine artificial upwelling device.

[0040] The first end of the outlet pipe 400 is connected to the outlet of the expansion pipe section 130 via a bend 140. This makes the structure of the Venturi pipe assembly simpler and more robust, and occupies less space when installed in an artificial upwelling device in the ocean. The parallel arrangement of the inlet pipe 300 and the outlet pipe 400 combines the parallel direction of the inlet and outlet water flow with the smooth bend 140, realizing the natural guidance of the water flow field, minimizing unnecessary bend losses and turbulence generation, and ensuring the full realization of the Venturi synergistic effect.

[0041] Combination Figures 1 to 5 An embodiment of this utility model also provides an artificial upwelling device for the ocean, which includes a hull 500, a propulsion mechanism 600, a power supply mechanism 700, a pump 800, and the aforementioned Venturi pipe assembly.

[0042] The propulsion mechanism 600 is fixed at the bottom of the hull 500 and can propel the hull 500 to sail.

[0043] The power supply mechanism 700 is electrically connected to the pump 800 and the propulsion mechanism 600, and supplies power to the pump 800 and the propulsion mechanism 600.

[0044] The second end of the outlet pipe 400 is connected to the pump 800, and the second end of the inlet pipe 300 is connected to the hull 500. The pump 800 can pump seawater through the outlet pipe 400 via the Venturi pipe assembly.

[0045] It is understood that the marine artificial upwelling device provided in the embodiments of this utility model, since it includes the aforementioned Venturi tube assembly, necessarily possesses all the advantages of that assembly. That is, the marine artificial upwelling device can also increase the flow velocity and decrease the pressure of seawater when it passes through the contraction section 110 of the Venturi tube 100, forming a negative pressure zone at the throat section 120 of the Venturi tube 100. The negative pressure effect can assist the pump of the marine artificial upwelling device in pumping the water flow, effectively reducing the energy consumption of the pump. Moreover, the spiral guide 200 provided in the throat section 120 can also give the water flow a moderate rotation, thereby regulating the flow pattern and suppressing the generation of vortices and turbulence. When the water flow with rotational energy enters the expansion section 130 of the Venturi tube 100, the flow velocity will decrease, and the kinetic energy of the water flow will be effectively converted into pressure energy, thereby restoring part of the pressure, directly reducing the workload of the subsequent pump, reducing the energy consumption of the pump, and improving efficiency.

[0046] Specifically, in combination Figure 1 and Figure 2 In some embodiments of this utility model, the power supply mechanism 700 includes a solar power panel 710, a power panel base 720, and a vertical axis wind turbine 730.

[0047] The solar panel base 720 is fixed to the top of the hull 500, and the solar panel 710 is mounted on the solar panel base 720. The solar panel 710 is connected to the pump 800 (e.g., Figure 1 Pump 800 is indicated by a dashed line. Pump 800 can be installed inside the hull 500. It is electrically connected and can be powered by solar power, which is energy-saving, environmentally friendly and solves the energy shortage problem.

[0048] The vertical axis wind turbine 730 is electrically connected to the pump 800, which can be powered by wind energy to form a multi-energy power supply, ensuring the normal operation of the device and reducing the cost of use.

[0049] Combination Figure 1 and Figure 2 In some embodiments of this utility model, the propulsion mechanism 600 includes a propeller 610 and a blade 620, with the blade 620 rotatably disposed on the propeller 610.

[0050] The hull 500 also includes an anchor 510 and a drain pipe 520. The first end of the drain pipe 520 is connected to seawater, and the second end of the drain pipe 520 is connected to the hull 500, so that the device can be safely and stably anchored at sea. Water inside the hull 500 can also be discharged into the ocean through the drain pipe 520 for easy recycling.

[0051] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A Venturi tube assembly for use in marine artificial upwelling devices, characterized in that, include: A Venturi tube has a contraction section, a throat section, and an expansion section connected sequentially along the water flow direction. The cross-sectional area of ​​the contraction section gradually decreases along the water flow direction, and the cross-sectional area of ​​the expansion section gradually increases along the water flow direction. A spiral guide is disposed inside the venturi tube and passes sequentially through the contraction section, the throat section, and the expansion section along the water flow direction; The inlet pipe has a first end for connecting to seawater, and the inlet of the contraction pipe section is connected to the inlet pipe. The outlet pipe has a first end connected to the outlet of the expansion pipe section and a second end connected to the marine artificial upwelling device.

2. The Venturi conduit assembly according to claim 1, characterized in that, The spiral guide is rotatably connected inside the venturi tube.

3. The Venturi conduit assembly according to claim 1, characterized in that, The spiral guide is coaxially arranged with the contraction section, the throat section and the expansion section.

4. The Venturi conduit assembly according to claim 1, characterized in that, Both the contraction section and the expansion section are conical, with the cone angle of the contraction section being 15° to 20° and the cone angle of the expansion section being 5° to 10°.

5. The Venturi conduit assembly according to claim 1, characterized in that, The spiral helix angle of the spiral guide is 40° to 50°.

6. The Venturi conduit assembly according to claim 1, characterized in that, The Venturi tube, the spiral guide, the inlet pipe, and the outlet pipe are all covered with a seawater corrosion resistant layer.

7. The Venturi conduit assembly according to claim 1, characterized in that, The inlet pipe and the outlet pipe are arranged parallel to each other, and the venturi tube is located between the inlet pipe and the outlet pipe. The second end of the inlet pipe extends outward for connection to an artificial ocean upwelling device. The first end of the outlet pipe is connected to the outlet of the expansion pipe section via a bend.

8. A marine artificial upwelling device, characterized in that, Includes the hull, propulsion mechanism, power supply mechanism, pump, and the Venturi tube assembly as described in any one of claims 1 to 7; The propulsion mechanism is fixed to the bottom of the hull and is adapted to propel the hull. The power supply mechanism is electrically connected to the pump and the propulsion mechanism; The second end of the outlet pipe is connected to the pump, and the second end of the inlet pipe is connected to the hull.

9. The marine artificial upwelling device according to claim 8, characterized in that, The power supply mechanism includes a solar panel, a panel base, and a vertical axis wind turbine. The base of the power generation panel is fixed to the top of the hull, and the solar power generation panel is mounted on the base of the power generation panel. The solar power generation panel is electrically connected to the pump. The vertical axis wind turbine is electrically connected to the pump.

10. The marine artificial upwelling device according to claim 8, characterized in that, The propulsion mechanism includes a thruster and blades, the blades being rotatably mounted on the thruster. The hull also includes an anchor and a drain pipe, with one end of the drain pipe connected to seawater and the other end connected to the hull.

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