Floating valve based on hydrodynamic force

Abstract

The utility model provides a float valve based on hydrodynamic force, which relates to the technical field of industrial water treatment and comprises a tray, sieve pores arranged on the surface of the tray, three groups of limiting blocks arranged on the inner side edge of each group of sieve pores, a float valve arranged on the top of the sieve pores, a fillet arranged on the top edge of the float valve, and a group of threaded rods arranged on the front and back surfaces of the float valve, a lifting plate is arranged on the outer side of the contact portion of the threaded rod and the floating valve, a balancing weight is arranged on the side, opposite to the floating valve, of the lifting plate, a nut is arranged on the side, opposite to the lifting plate, of the balancing weight, a tower body is arranged outside the tower tray, and the tower tray is in threaded connection with the tower body. The lifting plate is fixed through the nut, when liquid impacts the lifting plate, force facing the top can be provided for the lifting plate, the higher the flow speed of the liquid is, the larger the lifting force provided for the lifting plate is, the floating valve can be lifted more easily, more gas makes contact with the liquid, and the better energy exchange effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial water treatment, in particular to a floating valve based on fluid dynamics. Background Technique

[0002] The floating valve can float on the tray and change its opening degree with the change of gas flow rate. The floating valve is usually installed on the surface of the tray, and a movable-up-and-down floating valve is installed at each sieve hole of the tray. When the air flow rate passing through the sieve hole is high, the floating valve is lifted up, and when the air flow rate passing through the sieve hole is low, the floating valve drops due to its own weight. The lifting position of the floating valve is automatically adjusted according to the size of the gas flow rate, so that the air flow rate entering the liquid layer is basically stable. Also, because the gas enters the liquid layer in the horizontal direction under the floating valve, it not only reduces the entrainment amount of liquid droplets, but also prolongs the gas-liquid contact time and improves the energy exchange efficiency between the liquid and the gas.

[0003] Although the existing floating valve can control the rising or falling of the floating valve according to the flow rate of the gas moving from the bottom to the top, when the liquid flow rate inside the distillation column is too large, the state of the floating valve will not change due to the speed of the liquid flow rate, resulting in the liquid not being able to contact the air well and affecting the energy exchange effect. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the fact that the rising or falling state of the floating valve cannot be changed according to the liquid flow rate, thus affecting the energy exchange between the liquid and the gas, and to propose a floating valve based on fluid dynamics.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a floating valve based on fluid dynamics, including a tray, sieve holes are arranged on the surface of the tray, three groups of limiting blocks are arranged on the inner edge of each group of sieve holes, a floating valve is arranged on the top of the sieve holes, a rounded corner is arranged on the top edge of the floating valve, a set of threaded rods are arranged on both the front and back sides of the floating valve, a lifting plate is arranged on the outside of the contact part between the threaded rod and the floating valve, a counterweight block is arranged on the side of the lifting plate facing away from the floating valve, and a nut is arranged on the side of the counterweight block facing away from the lifting plate.

[0006] Preferably, a tower body is arranged outside the tray, the tray is threadedly connected with the tower body, and a downcomer is arranged between the tower body and the tray.

[0007] Preferably, the limiting block is welded to the sieve hole, and the limiting block is arc-shaped.

[0008] Preferably, three groups of limiting plates are arranged at equal angles at the bottom of the floating valve, the limiting plates are L-shaped, the outside of the limiting plates is in close contact with the sieve holes, and the length of the bottom of the limiting plates is less than the distance between adjacent two groups of limiting blocks.

[0009] Preferably, through holes are provided inside the lifting plate, and the diameters of the counterweight and the nut are both smaller than the length of the through hole, and the sum of the thicknesses of the counterweight and the nut is smaller than the width of the through hole.

[0010] Preferably, the distance between two adjacent groups of the sieve holes is the same, and the diameter of the sieve hole is smaller than the diameter of the floating valve.

[0011] Preferably, a circular ring is provided at the contact part between the lifting plate and the floating valve, and the diameter of the circular ring is smaller than the height of the floating valve.

[0012] Advantageous Effects

[0013] In the present utility model, a lifting plate, a threaded rod, and a nut are adopted. One end of the lifting plate is sleeved outside the threaded rod. After adjusting the angle of the lifting plate by a certain angle, the nut is tightened to fix the lifting plate. When the liquid flows through the top of the tray, the impact of the liquid on the lifting plate will provide a force towards the top for the lifting plate, and the greater the liquid flow rate, the greater the lifting force provided to the lifting plate, making it easier for the floating valve to rise, allowing more gas to contact the high-speed flowing liquid, and achieving a better energy exchange effect. Description of the Drawings

[0014] Figure 1 is an axonometric view of the present utility model;

[0015] Figure 2 is a top view of the present utility model;

[0016] Figure 3 is a bottom view of the present utility model;

[0017] Figure 4 is an axonometric view of the floating valve of the present utility model;

[0018] Figure 5 is a front view of the floating valve of the present utility model.

[0019] Legend Explanation:

[0020] 1. Tray; 2. Limit block; 3. Floating valve; 4. Tower body; 5. Downcomer; 6. Lifting plate; 7. Sieve hole; 8. Counterweight; 9. Threaded rod; 10. Limit plate; 11. Nut. Detailed Embodiments

[0021] In order to make the technical means, creative features, achieved purposes, and functions of the present utility model easy to understand, the present utility model will be further described below with reference to specific embodiments and the drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present utility model.

[0022] The specific embodiments of the present utility model will be described below in conjunction with the accompanying drawings. Specific Embodiment 1:

[0024] Referring to Figures 1-5 , this embodiment provides a floating valve based on hydrodynamic force, including a tray 1 where the liquid stays at the top of the tray 1. The surface of the tray 1 is provided with sieve holes 7, and the gas comes from the bottom of the tray 1 through the sieve holes 7 to the top of the tray 1, where the gas contacts the liquid for energy exchange. Three sets of limit blocks 2 are provided on the inner edge of each group of sieve holes 7, and the limit blocks 2 are welded to the sieve holes 7. The limit blocks 2 are arc-shaped. A floating valve 3 is provided at the top of the sieve holes 7. Three sets of limit plates 10 are equiangularly provided at the bottom of the floating valve 3. The limit plates 10 are L-shaped. When the floating valve 3 rises, the limit plates 10 contact the limit blocks 2 to prevent the floating valve 3 from leaving the sieve holes 7. The outer sides of the limit plates 10 are in close contact with the sieve holes 7. The length of the bottom of the limit plates 10 is less than the distance between two adjacent limit blocks 2, so that the limit plates 10 can pass through between the two limit blocks 2. The top edge of the floating valve 3 is provided with a rounded corner. A set of threaded rods 9 are provided on both the front and back sides of the floating valve 3. A lifting plate 6 is provided on the outer side of the contact part between the threaded rod 9 and the floating valve 3. A ring is provided at the contact part between the lifting plate 6 and the floating valve 3. The diameter of the ring is less than the height of the floating valve 3. A through hole is provided inside the lifting plate 6. The diameters of the counterweight block 8 and the nut 11 are both less than the length of the through hole. The sum of the thicknesses of the counterweight block 8 and the nut 11 is less than the width of the through hole. A counterweight block 8 is provided on the side of the lifting plate 6 facing away from the floating valve 3. A nut 11 is provided on the side of the counterweight block 8 facing away from the lifting plate 6. The nut 11 fastens the lifting plate 6 and the counterweight block 8 to the outside of the threaded rod 9. A tower body 4 is provided outside the tray 1, and the tray 1 is threadedly connected to the tower body 4. A downcomer 5 is provided between the tower body 4 and the tray 1. The liquid on the surface of the tray 1 enters the next tray 1 through the downcomer 5. The distance between two adjacent sieve holes 7 is the same. The diameter of the sieve holes 7 is less than the diameter of the floating valve 3, so that the floating valve 3 can completely cover the sieve holes 7.

[0025] Pass the limiting plate 10 through the gap between two adjacent groups of limiting blocks 2. Then rotate the floating valve 3 so that when the floating valve 3 is lifted by air, the limiting plate 10 blocks the limiting block 2, preventing the floating valve 3 from leaving the sieve hole 7 during operation. After all the floating valves 3 are installed, place the tray 1 inside the tower body 4 and fix the position of the tray 1 with bolts. Air moves from the bottom to the top of the tower body 4, and liquid moves from the top to the bottom of the tower body 4. The liquid stays on the surface of the tray 1. When the gas velocity is relatively high, the gas lifts the floating valve 3, and the gas passes through the sieve hole 7 and contacts the liquid on the surface of the tray 1 for energy exchange. After adjusting the angle of the lifting plate 6 by a certain angle, tighten the nut 11 to fix the lifting plate 6. When the liquid flows over the top of the tray 1, the impact of the liquid on the lifting plate 6 provides a force towards the top for the lifting plate 6, and the greater the liquid velocity, the greater the lifting force provided to the lifting plate 6, making it easier for the floating valve 3 to rise and allowing more gas to contact the high-speed flowing liquid, achieving a better energy exchange effect. The gas leaves from the top of the tower body 4, and the liquid leaves from the bottom of the tower body 4. Specific Embodiment Two:

[0027] Refer to Figures 1-5 , this embodiment provides a floating valve based on hydrodynamic force, including a tray 1. Sieve holes 7 are provided on the surface of the tray 1. A floating valve 3 is provided on the top of the sieve hole 7. A set of threaded rods 9 are provided on both the front and back sides of the floating valve 3. A lifting plate 6 is provided outside the contact part of the threaded rod 9 and the floating valve 3. A counterweight 8 is provided on the side of the lifting plate 6 facing away from the floating valve 3. A nut 11 is provided on the side of the counterweight 8 facing away from the lifting plate 6. The user can adjust the angle of the lifting plate 6 so that the floating valve 3 obtains a larger or smaller lifting force under the same liquid velocity, and can also adjust the specification of the counterweight 8 to change the mass of the floating valve 3 to meet the gas-liquid energy exchange in different situations.

[0028] In summary:

[0029] Adopt the lifting plate 6, threaded rod 9, and nut 11. One end of the lifting plate 6 is sleeved outside the threaded rod 9. After adjusting the angle of the lifting plate 6 by a certain angle, tighten the nut 11 to fix the lifting plate 6. When the liquid flows over the top of the tray 1, the impact of the liquid on the lifting plate 6 provides a force towards the top for the lifting plate 6, and the greater the liquid velocity, the greater the lifting force provided to the lifting plate 6, making it easier for the floating valve 3 to rise and allowing more gas to contact the high-speed flowing liquid, achieving a better energy exchange effect.

[0030] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being “above” or “below” the second feature may include the direct contact between the first and second features, or may also include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on the top of” the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being “below”, “under” and “beneath” the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0031] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A float valve based on fluid dynamics, comprising a tray (1), characterized in that: The surface of the tower plate (1) is provided with sieve holes (7), and the inner edge of each group of the sieve holes (7) is provided with three groups of limit blocks (2). A float valve (3) is provided on the top of the sieve holes (7), and the top edge of the float valve (3) is provided with a rounded corner. A group of threaded rods (9) are provided on the front and back sides of the float valve (3). A lifting plate (6) is provided on the outside of the contact portion between the threaded rod (9) and the float valve (3). A counterweight block (8) is provided on the side of the lifting plate (6) facing away from the float valve (3), and a nut (11) is provided on the side of the counterweight block (8) facing away from the lifting plate (6). A limit plate (10) is provided at an equal angle at the bottom of the float valve (3). The limit plate (10) is L-shaped, and the outer side of the limit plate (10) is tightly attached to the sieve hole (7). The length of the bottom of the limit plate (10) is less than the distance between two adjacent groups of limit blocks (2).

2. A fluid-powered float valve according to claim 1, characterized in that: A tower body (4) is provided outside the tower tray (1), the tower tray (1) is threadedly connected to the tower body (4), and a downcomer (5) is provided between the tower body (4) and the tower tray (1).

3. A fluid-powered float valve according to claim 1, characterized in that: The limiting block (2) is welded to the sieve hole (7), and the limiting block (2) is in an arc shape.

4. A fluid-powered float valve according to claim 1, characterized in that: Three groups of limit plates (10) are arranged at equal angles at the bottom of the float valve (3).

5. A fluid-powered float valve according to claim 1, characterized in that: A through hole is provided inside the lifting plate (6); the diameters of the counterweight block (8) and the nut (11) are both smaller than the length of the through hole; and the sum of the thicknesses of the counterweight block (8) and the nut (11) is smaller than the width of the through hole.

6. A fluid-powered float valve according to claim 1, characterized in that: The distances between two adjacent groups of the sieve holes (7) are the same, and the diameter of the sieve holes (7) is smaller than the diameter of the float valve (3).

7. A fluid-powered float valve according to claim 1, characterized in that: A circular ring is provided at the contact portion between the lifting plate (6) and the float valve (3), and the diameter of the circular ring is smaller than the height of the float valve (3).

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