Manual downwelling device based on guide plate

Abstract

The invention provides a manual downwelling device based on a flow guide plate. The device comprises a base, a support, the flow guide plate, a plurality of bosses with grooves, a plurality of tensioning cables, a plurality of cable tensioners and a plurality of hoisting cables, wherein the base and the support are of a rectangular structure; the support is perpendicular to the base, and a first support frame of the support is attached to the center line of the base. One end of the hoisting cable is connected with the second bracket frame of the bracket, and the other end is connected with the frame of the guide plate for hoisting the guide plate; one end of the tensioning cable is connected with the cable tensioner, and the other end of the tensioning cable is connected with a second support frame of the support and used for limiting movement of the guide plate. The cable tensioner is fixed on the base; the bosses with the grooves are oppositely fixed on the first base frame and the second base frame which are located on the two sides of the support. According to the artificial downcomer device, the downcomer is formed by blocking and inducing the tidal current in the horizontal direction to change the direction, the vertical exchange capacity of seawater is enhanced, and the seawater hypoxia condition in an offshore area is effectively relieved.

Description

Technical Field

[0001] The present disclosure relates to the field of fluid mechanics, and in particular to an artificial downwelling device based on a guide plate. Background Art

[0002] Under the dual pressures of global warming and intensified human activities, hypoxia in coastal and estuary areas is becoming more serious, with an increased frequency, larger area and more severe severity of hypoxia disasters. Artificial downwelling is considered an effective way to alleviate marine hypoxia. In closed fjords and lakes, oxygen can be significantly improved through various vertical water exchange methods, but due to the extremely high transportation, operation and maintenance costs, existing vertical water exchange methods are not practical in coastal waters. Summary of the invention

[0003] The present disclosure provides an artificial downwelling device based on a guide plate to at least solve the above technical problems existing in the prior art.

[0004] According to a first aspect of the present disclosure, an artificial descending flow device based on a guide plate is provided, the device comprising: a base, a guide plate, a bracket, a plurality of bosses with grooves, a plurality of tensioning cables, a plurality of cable tensioners and a plurality of lifting cables; the base and the bracket are of a rectangular structure, the bracket is placed perpendicular to the base and the first bracket frame of the bracket is in contact with the center line of the base; one end of the lifting cable is connected to the second bracket frame of the bracket, and the other end of the lifting cable is connected to the frame of the guide plate for lifting the guide plate; one end of the tensioning cable is connected to the cable tensioner, and the other end of the tensioning cable is connected to the second bracket frame of the bracket for limiting the movement of the guide plate; the cable tensioner is fixed to the base; the boss with grooves is relatively fixed to the first base frame and the second base frame located on both sides of the bracket.

[0005] In one possible implementation manner, the device further comprises: a grid support plate, wherein the grid support plate is fitted and fixed to the lower end of the base.

[0006] In one possible implementation manner, the device further comprises: a plurality of counterweight blocks, wherein the plurality of counterweight blocks are fixed to the grid support plate.

[0007] In one possible implementation manner, the frame material of the guide plate is stainless steel, and the main body material of the guide plate is a composite structure formed by a tarpaulin woven from polyester fibers and coated with polyvinyl chloride.

[0008] In one possible implementation manner, the boss with the groove is fixed to the base by means of cement steel casting, and the bracket is fixed to the base by means of cement steel casting.

[0009] In one possible implementation manner, the lifting cable and the tensioning cable are made of synthetic fiber.

[0010] In one embodiment, the cable tensioner is made of stainless steel.

[0011] In one possible implementation, the boss with the groove is fixed to the midpoint of the first base frame and the second base frame.

[0012] In one possible implementation manner, the boss with the groove is used to be stuck on the groove when the guide plate rotates around the second bracket frame, so as to prevent the guide plate from rotating at an excessively large angle.

[0013] In one possible implementation manner, the counterweight block is fixed to the grid support plate by pouring cement.

[0014] The present invention discloses an artificial descending flow device based on a guide plate, comprising: a base, a guide plate, a bracket, a plurality of bosses with grooves, a plurality of tensioning cables, a plurality of cable tensioners and a plurality of lifting cables, wherein the base and the bracket are of a rectangular structure, the bracket is placed perpendicular to the base and a first bracket frame of the bracket is in contact with a center line of the base; one end of the lifting cable is connected to a second bracket frame of the bracket, and the other end is connected to a frame of the guide plate, so as to lift the guide plate; one end of the tensioning cable is connected to a cable tensioner, and the other end is connected to the second bracket frame of the bracket, so as to limit the movement of the guide plate, the cable tensioner is fixed to the base, and the bosses with grooves are relatively fixed to a first base frame and a second base frame located on both sides of the bracket. The artificial downwelling device based on the guide plate of the present application forms a downwelling by blocking the induced horizontal tide to change direction, thereby enhancing the vertical exchange capacity of seawater, transporting the upper oxygen-rich seawater to the bottom layer, and effectively alleviating the hypoxia condition of the bottom seawater in the offshore area. The guide plate will swing with the overall change of the tide direction, and can face the tide direction in most tide directions, thereby increasing the efficiency of the induced downwelling, having a simple structure and low cost.

[0015] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, in which: In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0017] Figure 1The structure diagram of an artificial downwelling device based on a guide plate according to an embodiment of the present disclosure is shown. Figure 1 ; Figure 2 The structure diagram of an artificial downwelling device based on a guide plate according to an embodiment of the present disclosure is shown. Figure 2 ; Figure 3 A schematic structural diagram of a boss with a groove according to an embodiment of the present disclosure is shown.

[0018] Explanation of the numbers in the figure: 1. base; 2. guide plate; 3. bracket; 4. boss with groove; 5. tensioning cable; 6. cable tensioner; 7. lifting cable; 8. grid support plate; 9. counterweight; 31. first bracket frame; 32. second bracket frame; 11. first base frame; 12. second base frame. DETAILED DESCRIPTION

[0019] In order to make the purpose, features, and advantages of the present disclosure more obvious and easy to understand, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present disclosure.

[0020] Figure 1 An artificial downwelling device based on a guide plate according to an embodiment of the present disclosure is shown. Figure 1 As shown, the artificial downwelling device includes: a base 1, a guide plate 2, a bracket 3, a plurality of bosses 4 with grooves, a plurality of tensioning cables 5, a plurality of cable tensioners 6 and a plurality of hoisting cables 7, wherein the base 1 and the bracket 3 are rectangular structures, the bracket 3 is placed perpendicular to the base 1 and the first bracket frame 31 of the bracket 3 is in contact with the center line of the base 1, one end of the hoisting cable 7 is connected to the second bracket frame 32 of the bracket 3, and the other end is connected to the frame of the guide plate 2, and is used to tighten the guide plate 2 so that the guide plate 2 is in a hoisting state. One end of the tensioning cable 5 is connected to the cable tensioner 6, and the cable tensioner 6 is fixed on the base 1, and the other end of the tensioning cable 5 is connected to the second bracket frame 32 of the bracket 3 to limit the movement of the guide plate 2; Figure 1As shown, the cable tensioner 6 is fixed to the four top corners of the base 1 (one of which is not shown), and the cable tensioner 6 can apply sufficient tension to keep the tensioning cable 5 in a tensioned state, and the upward, front-back, and left-right movements of the guide plate 2 can be limited by the cable tensioner 6 and the tensioning cable 5. The boss 4 with grooves is relatively fixed to the first base frame 11 and the second base frame 12 of the base 1. When encountering a tidal current, the guide plate 2 rotates around the second bracket frame 32 to a limited extent with the tidal current. The boss 4 with grooves can limit the swing amplitude of the guide plate 2, preventing the frame at the bottom of the guide plate 2 from rising too high with the increase of the tidal current flow rate, resulting in a decrease in the downflow flow rate.

[0021] The various structures of the device cooperate with each other. When the horizontal tide flows through the guide plate, the guide plate can rotate to a limited extent around the frame of the second bracket with the tide. A part of the horizontal kinetic energy is converted into downward kinetic energy to overcome the stratified resistance formed by the vertical density difference of the water body, and the remaining kinetic energy maintains the horizontal movement of the downflow at the bottom of the device. After the downflow enters the bottom water body, it will effectively alleviate hypoxia due to its own high dissolved oxygen concentration.

[0022] The artificial downwelling device based on the guide plate of the present application forms a downwelling by blocking the inducing horizontal tide to change direction, thereby enhancing the vertical exchange capacity of seawater, transporting the upper oxygen-rich seawater to the bottom layer, and effectively alleviating the hypoxia condition of the bottom seawater in the offshore area. The guide plate will swing with the overall change of the tide direction, and can face the tide direction in most tide directions, thereby increasing the efficiency of the induced downwelling. It has a simple structure and low cost.

[0023] Figure 2 The structure diagram of an artificial downwelling device based on a guide plate according to an embodiment of the present disclosure is shown. Figure 2 .

[0024] like Figure 2 As shown, the device further includes: a grid support plate 8, which is fitted and fixed to the lower end of the base 1.

[0025] The grid support plate 8 is attached to the base 1 and fixed at the lower end of the base 1. The grid support plate 8 can increase the contact area between the artificial downwelling device and the seabed to reduce the pressure, and can prevent the artificial downwelling device from sinking into the mud.

[0026] like Figure 2 As shown, the device also includes a plurality of counterweight blocks 9, and the plurality of counterweight blocks 9 are fixed to the grid support plate 8.

[0027] A plurality of counterweights 9 are fixed on the grid support plate 8 to increase the weight of the artificial downwelling device as a whole, lower the center of gravity of the artificial downwelling device, increase the overturning moment of the artificial downwelling device, and prevent the artificial downwelling device from being overturned by the tidal current when the tidal current is large. In order to ensure the balance of the artificial downwelling device, a plurality of counterweights 9 should be symmetrically fixed on the grid support plate 8.

[0028] In one possible implementation manner, the frame material of the guide plate 2 is stainless steel, and the main body material of the guide plate 2 is a composite structure formed by a tarpaulin woven from polyester fibers and coated with polyvinyl chloride.

[0029] Stainless steel has strong corrosion resistance and can remain stable in harsh environments such as humidity, acid and alkali. Therefore, the frame material of the guide plate 2 is selected as stainless steel, which can effectively prevent the frame from being damaged by seawater corrosion, thereby extending the life of the guide plate 2. In addition, stainless steel has good mechanical strength and can withstand greater pressure and impact force, ensuring that the guide plate 2 remains stable when subjected to the impact of the tide. The composite structure formed by weaving polyester fiber into a tarpaulin shape and then coating the tarpaulin with polyvinyl chloride is used as the material of the main body of the guide plate 2. The polyester fiber is light in weight, so the tarpaulin woven with polyester fiber can reduce the weight of the main body of the guide plate 2. The polyvinyl chloride coating has good waterproofness and wear resistance, which can effectively prevent moisture from penetrating into the inside of the guide plate 2 and resist friction and wear of external objects. Therefore, the composite structure formed by coating the tarpaulin woven with polyester fiber with polyvinyl chloride as the main body of the guide plate 2 can ensure the dryness and stability of the guide plate 2, and has sufficient bearing capacity while the guide plate 2 remains light, which can extend the service life of the guide plate 2 and meet the use requirements in complex environments.

[0030] In one possible implementation manner, the boss 4 with the groove is fixed on the base 1 by means of cement reinforcement casting, and the bracket 3 is fixed on the base 1 by means of cement reinforcement casting.

[0031] The combination of cement and steel bars can form a high-strength, high-toughness composite material that can withstand the influence of various environmental factors. The grooved boss 4 and the bracket 3 are fixed to the base 1 by pouring cement and steel bars, which can prevent the water from eroding the grooved boss 4 and the bracket 3 and improve the bearing capacity of the base 1.

[0032] In one embodiment, the material of the hoisting cable 7 and the tensioning cable 5 is synthetic fiber.

[0033] The hoisting cable 7 and the tensioning cable 5 made of synthetic fiber are light and high-strength. While ensuring strength, the weight of the cable is significantly reduced, which is convenient for operation, and is particularly important for the hoisting cable 7. In addition, it has good wear resistance and corrosion resistance, is more suitable for marine environment, and can maintain a long service life in a poor environment. The synthetic fibers that can be used include polyester, nylon, polypropylene, nylon, etc.

[0034] In one embodiment, the cable tensioner 6 is made of stainless steel.

[0035] The cable tensioner 6 is fixed on the base 1. Since stainless steel has strong corrosion resistance and can remain stable in harsh environments such as humidity, acid and alkali, the cable tensioner 6 is made of stainless steel to effectively prevent the cable tensioner 6 from being damaged by seawater corrosion, thereby extending the life of the cable tensioner 6.

[0036] In one embodiment, the boss 4 with the groove is fixed to the midpoint of the first base frame 11 and the second base frame 12 .

[0037] The artificial downflow device based on the guide plate shown in the embodiment of the present application includes two bosses 4 with grooves, and the bosses 4 with grooves can be fixed to the midpoints of the first base frame 11 and the second base frame 12. Such a fixing method can maintain the relative balance of the base 1.

[0038] It is understandable that if multiple bosses 4 with grooves are provided, they can be evenly installed on the first base frame 11 and the second base frame 12 respectively, and the bosses 4 with grooves on each base frame are installed equidistantly relative to the two end points of the base frame.

[0039] Figure 3 A schematic structural diagram of a boss with a groove according to an embodiment of the present disclosure is shown.

[0040] like Figure 2 and Figure 3 As shown, the boss 4 with the groove is used to be stuck on the groove when the guide plate 2 rotates around the second bracket frame 32, so as to prevent the guide plate 2 from rotating too much.

[0041] The upper frame of the guide plate 2 is connected to the hoisting cable 7, and the lower frame is not restricted. The guide plate 2 is affected by the tide and rotates around the second bracket frame 32. When the tidal flow rate increases, the swing amplitude of the guide plate 2 also increases, and the lower frame of the guide plate may even rotate to the same height as the upper frame. This situation will cause the downflow flow rate to decrease. Therefore, the boss 4 with grooves is provided with grooves, which can be used to get stuck in the grooves when the guide plate 2 is affected by the tide and rotates, so as to limit the reduction of the downflow flow rate caused by the lower frame of the guide plate 2 rotating too high. It can be understood that the position of the groove on the boss can be set at different heights according to the actual water conditions.

[0042] Since the structure of the boss 4 with grooves is similar to that of an artificial fish reef, the device can not only enhance the vertical exchange of seawater and increase the dissolved oxygen in the bottom of the seawater, but also take into account some functions of the artificial fish reef and has the function of regulating the biological environment.

[0043] In one embodiment, the counterweight 9 is fixed to the grid support plate 8 by pouring cement.

[0044] The combination of cement and steel bars can form a high-strength, high-toughness composite material that can withstand the influence of various environmental factors. The counterweight block 9 is fixed to the grid support plate 8 by cement pouring, which can not only prevent the erosion of the water area to the counterweight block 9 but also improve the bearing capacity.

[0045] It is understandable that the grid support plate 8 can also be fixed to the base 1 by cement pouring.

[0046] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An artificial downwelling device based on a guide plate, characterized in that: The device comprises: A base (1), a guide plate (2), a bracket (3), a plurality of bosses with grooves (4), a plurality of tensioning cables (5), a plurality of cable tensioners (6), and a plurality of lifting cables (7); The base (1) and the bracket (3) are rectangular structures, the bracket (3) is placed perpendicular to the base (1), and the first bracket frame (31) of the bracket (3) is aligned with the center line of the base (1); One end of the hoisting cable (7) is connected to the second bracket frame (32) of the bracket (3), and the other end of the hoisting cable (7) is connected to the frame of the guide plate (2), so as to be used for hoisting the guide plate (2); One end of the tensioning cable (5) is connected to the cable tensioner (6), and the other end of the tensioning cable (5) is connected to the second bracket frame (32) of the bracket (3), so as to limit the movement of the guide plate (2); The cable tensioner (6) is fixed to the base (1); The boss (4) with the groove is relatively fixed to a first base frame (11) and a second base frame (12) located on both sides of the bracket (3).

2. The device according to claim 1, characterized in that The device also includes: A grid support plate (8), the grid support plate (8) being fitted and fixed to the lower end of the base (1).

3. The device according to claim 2, characterized in that The device also includes: A plurality of counterweight blocks (9), wherein the plurality of counterweight blocks (9) are fixed to the grid support plate (8).

4. The device according to claim 1, characterized in that The frame material of the guide plate (2) is stainless steel, and the main body material of the guide plate (2) is a composite structure formed by tarpaulin woven from polyester fibers and coated with polyvinyl chloride.

5. The device according to claim 1, characterized in that The boss (4) with the groove is fixed on the base (1) by means of cement steel casting, and the bracket (3) is fixed on the base (1) by means of cement steel casting.

6. The device according to claim 1, characterized in that The material of the hoisting cable (7) and the tensioning cable (5) is synthetic fiber.

7. The device according to claim 1, characterized in that The cable tensioner (6) is made of stainless steel.

8. The device according to claim 1, characterized in that The boss (4) with a groove is fixed to the midpoint of the first base frame (11) and the second base frame (12).

9. The device according to claim 1, characterized in that The boss (4) with the groove is used to be stuck on the groove when the guide plate (2) rotates around the second bracket frame (32), so as to prevent the guide plate (2) from rotating at an excessively large angle.

10. The device according to claim 3, characterized in that The counterweight block (9) is fixed on the grid support plate (8) by means of cement pouring.

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