Float valve tray with high efficiency and mass transfer rate

Abstract

The invention discloses a float valve tray with high efficiency and mass transfer rate, and relates to the technical field of trays, the float valve tray is used for being mounted in a separation tower, the float valve tray comprises a tray, a plurality of mounting holes are formed in the tray, and float valves capable of moving up and down are arranged in the mounting holes of the tray; the floating valve comprises a valve body and a valve cover, the interior of the valve body is hollow, the hollow valve body is communicated with the mounting hole, and a plurality of rectangular through holes are formed in the radial surface of the valve body; a plurality of circular through holes are formed in the radial surface of the valve body, and the section size of the circular through holes is smaller than that of the rectangular through holes. The valve has the effect of accurately controlling fluid circulation.

Description

Technical Field

[0001] The invention relates to the technical field of tower trays, in particular to a floating valve tower tray with high mass transfer efficiency. Background Art

[0002] The circular floating valve tower is a new tower type with a simple structure, low manufacturing cost, and can adapt to common material conditions. It is one of the most widely used tower types in the chemical and oil refining industries. The floating valve tray is widely used in the mass transfer processes of reduced pressure, atmospheric pressure and reduced pressure distillation, stabilization, adsorption and desorption in petrochemical industry. The diameter of the floating valve tower used in China ranges from 200mm to 6400mm, and the use effect is good. The working principle of the floating valve tray is that when there is rising steam, the steam impacts the floating valve, causing the floating valve to open upward. The opening of the floating valve increases with the increase of steam, thereby allowing more steam to pass through. When there is no rising steam, the floating valve is closed on the tower plate and the opening is small.

[0003] For related technologies, reference may be made to the Chinese patent with the authorization announcement number CN104958923A, which discloses a disc-shaped floating valve tower plate, which includes a tower plate and a floating valve that can move up and down, and the tower plate is provided with a mounting hole for installing the floating valve, and the floating valve includes a circular valve cover arranged above the tower plate and a valve leg extending downward from the periphery of the valve cover to the bottom of the tower plate, and the valve leg is distributed at intervals along the periphery of the valve cover, and the periphery of the valve cover is provided with a serrated edge that is folded downward, and the serrated edge of the valve cover is used to abut against the upper surface of the tower plate when the floating valve falls, and a plurality of tongue holes are provided on the tower plate; a circle of protrusions is fixed on the bottom surface of the valve cover, and the valve cover is filled with a polystyrene foam layer. The disc-shaped floating valve tower plate has the advantages of fine and uniform airflow dispersion and sufficient gas-liquid contact.

[0004] However, the above solution still has some defects. Specifically, due to the irregular direction of the fluid guidance, the airflow pressure is balanced only by the tongue hole, which makes it difficult to achieve precise flow control when the fluid passes through the tongue hole. This limitation affects the sensitivity of the system in responding to airflow changes. Summary of the invention

[0005] The present application provides a floating valve tray with high mass transfer efficiency, which has the function of accurately controlling fluid circulation.

[0006] The present application provides a floating valve tray with high mass transfer efficiency, which adopts the following technical solution: A floating valve tower plate with high mass transfer efficiency is used for installation inside a separation tower, comprising a tower plate, a plurality of mounting holes are arranged inside the tower plate, and a floating valve that can move up and down is arranged in the mounting hole of the tower plate; the floating valve comprises a valve body and a valve cover, the interior of the valve body is hollow, the hollow valve body and the mounting hole are connected to each other, and a plurality of rectangular through holes are arranged on the radial surface of the valve body; a plurality of circular through holes are arranged on the radial surface of the valve body, and the cross-sectional size of the circular through holes is smaller than the cross-sectional size of the rectangular through holes.

[0007] By adopting the above technical solution, the airflow passes through the valve body and continuously impacts the valve cover, causing the valve body to move upward inside the mounting hole; when the valve body rises to a certain height, the rectangular through hole is exposed, and the airflow can pass smoothly. At this time, the valve body will automatically open under specific conditions, thereby allowing the flow of gas or liquid; as the airflow weakens, the valve body can be closed again under the action of gravity to prevent the reverse flow of the airflow; since the cross-sectional size of the circular through hole is smaller than the channel formed by the rectangular through hole, the fluid flow stimulated by the former is relatively small, thereby generating a higher pressure difference; this design enables the flow of the fluid to be more accurately controlled under different operating conditions; during the movement of the valve body, the pressure difference between the upper and lower parts can be adjusted more effectively, thereby achieving a more sensitive response to changes in airflow.

[0008] Preferably, a thickened collar is provided on the outer ring of the tower plate; the outer ring of the thickened collar is detachably connected to the cylindrical inner wall of the separation tower via a connecting component.

[0009] By adopting the above technical solution, the tower plate can be detachably connected to the inner wall of the separation tower through the connecting parts; this design not only ensures the stability of the tower plate, but also provides convenience for subsequent maintenance and replacement.

[0010] Preferably, the connecting component comprises a protruding block arranged on the cylindrical inner wall of the separation tower and a special-shaped groove arranged on the outer ring surface of the thickened collar and matching with the protruding block.

[0011] By adopting the above technical solution, the design of the raised block and the special-shaped groove realizes the firm fixation of the tower plate on the inner wall of the separation tower; the shape of the special-shaped groove precisely matches the raised block, which effectively prevents the tower plate from displacement or rotation during operation, thereby ensuring the stability and safety of the tower plate; in addition, due to the good fit between the raised block and the special-shaped groove, the tower plate can be self-aligned during installation, so that it can be quickly and accurately fixed in a predetermined position; this design not only simplifies the installation process, but also significantly improves work efficiency.

[0012] Preferably, the special-shaped groove is provided with a first longitudinal guide portion, a transverse guide portion and a second longitudinal guide portion in sequence, wherein the first longitudinal guide portion, the transverse guide portion and the second longitudinal guide portion on the special-shaped groove form an inverted U-shaped structure, and the bottom of the first longitudinal guide portion of the special-shaped groove forms an opening at the bottom of the thickened ring.

[0013] By adopting the above technical solution, the combination of the first longitudinal guide portion, the transverse guide portion and the second longitudinal guide portion forms an inverted U-shaped structure, providing a clear guide channel so that the raised block can move smoothly along a predetermined path; this guiding mechanism ensures a smooth and precise installation process, significantly reducing the risk of misalignment and incorrect installation; under this design, the movement of the raised block is effectively controlled, thereby improving the assembly efficiency and reliability of the overall system.

[0014] Preferably, a self-locking component is provided in the transverse guide portion of the special-shaped groove, and the self-locking component includes a first fixed block and a second fixed block, a transverse channel for the protruding block to pass through is formed between the first fixed block and the second fixed block, and limiting holes are provided inside the first fixed block and the second fixed block, and springs are provided in the limiting holes of the first fixed block and the second fixed block, and one end of the spring is connected to a guide ball.

[0015] By adopting the above technical solution, when the protrusion block passes through the interior of the transverse channel, the protrusion block squeezes the spherical surface of the guide ball and enters the second longitudinal guide part. Under the action of the spring, the two guide balls form a partition in the transverse channel to achieve self-locking.

[0016] Preferably, guide slopes are provided on both sides of the first fixing block and the second fixing block.

[0017] By adopting the above technical solution, the setting of the guiding slope is used to guide the protruding block into the transverse channel.

[0018] Preferably, an enlarged portion is provided at the bottom of the valve body, an outwardly expanded portion is provided in the middle of the mounting hole of the tower plate, and the enlarged portion of the valve body slides in the outwardly expanded portion of the mounting hole.

[0019] By adopting the above technical solution, the design of the enlarged part and the outward expansion part enables the valve body to slide freely in the outward expansion part of the mounting hole, thereby achieving excellent complementary fit; this design not only allows the valve body to make necessary movements during installation and operation, but also ensures the stability and reliability of the connection; through this flexible matching mechanism, the valve body can effectively respond to displacement requirements during operation without affecting the stability of its overall structure, thereby improving the performance and service life of the system.

[0020] Preferably, the enlarged portion of the valve body and the outwardly expanded portion of the mounting hole are sealed and connected via a foldable flexible layer, and the flexible layer sealing connection is provided with a plurality of bending portions with a V-shaped cross section.

[0021] By adopting the above technical solution, the foldable flexible layer can provide the necessary elasticity and deformation ability when sliding up and down the valve body, thereby realizing the relative free movement between the valve body and the tower plate; the V-shaped bending part design gives the structure multi-directional flexibility; when the valve body slides up and down, the bending part can be effectively deformed, while maintaining the sealed connection, significantly reducing the stress concentration caused by relative movement; this design not only improves the reliability of the connection, but also optimizes the overall performance of the system, ensuring its efficient operation under dynamic operating conditions.

[0022] Preferably, a conical sleeve with an outwardly expanded bottom is provided at the bottom of the valve cover, and the upper surface of the valve body is inwardly contracted to form a contracted portion, and the contracted portion of the valve body matches the outer surface of the conical sleeve.

[0023] By adopting the above technical solution, a conical fit is formed between the outer surface of the tapered sleeve and the indented portion of the valve body, and stable positioning and self-locking functions are achieved by utilizing the characteristics of the geometric shape; the conical design provides a surface contact point, so that the firmness of the connection is enhanced when pressure is applied; this design not only improves the stability of the connection, but also effectively prevents loosening caused by external forces, thereby ensuring the reliability of the system under various operating conditions.

[0024] Preferably, a plurality of claw hooks are provided at the outer edge of the bottom of the valve cover, and the claw hooks are folded downward.

[0025] By adopting the above technical solution, when the airflow blows directly upward irregularly, the airflow is forced to be diverted more evenly and flows out from the folded edge of the claw hook of the valve cover, so that the airflow dispersion is more dense and uniform, the gas-liquid contact is more complete, the gas velocity sprayed around the valve is reduced, and the airflow collision between valves is reduced, thereby reducing the entrainment of mist and foam, and improving the tower plate efficiency and production capacity.

[0026] In summary, this application has the following beneficial effects: 1. The airflow passes through the valve body and continuously impacts the valve cover, causing the valve body to move upward inside the mounting hole; when the valve body rises to a certain height, the rectangular through-hole is exposed, and the airflow can pass smoothly. At this time, the valve body will automatically open under certain conditions to allow the flow of gas or liquid; as the airflow weakens, the valve body can be closed again under the action of gravity to prevent the reverse flow of the airflow; since the cross-sectional size of the circular through-hole is smaller than the channel formed by the rectangular through-hole, the fluid flow stimulated by the former is relatively small, thereby generating a higher pressure difference; this design enables the flow of fluid to be controlled more accurately under different operating conditions; during the movement of the valve body, the pressure difference between the upper and lower parts can be adjusted more effectively, thereby achieving a more sensitive response to airflow changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall structure of the floating valve tray in this embodiment; Figure 2 is a schematic diagram of the overall structure of the thickened collar in this embodiment; Figure 3 Schematic diagram of the internal structure of the tower plate in this embodiment; Figure 4 is a partial cross-sectional view of a tray in this embodiment; Figure 5 Schematic diagram of the overall structure of the float valve in this embodiment; Figure 6 is an exploded schematic diagram between the valve body and the valve cover in this embodiment; Figure 7 is a schematic diagram of the overall structure of the valve cover in this embodiment; Explanation of the accompanying drawings: 1. tower plate; 2. thickened ring; 3. connecting part; 301. special-shaped groove; 302. first longitudinal guide part; 303. transverse guide part; 304. second longitudinal guide part; 305. opening; 306. self-locking component; 30601. first fixed block; 30602. second fixed block; 30603. guide ball; 30604. guide ramp; 4. mounting hole; 5. float valve; 501. valve body; 502. valve cover; 503. rectangular through hole; 504. circular through hole; 505. expansion part; 506. outward expansion part; 507. flexible layer; 508. bending part; 509. tapered sleeve; 5010. claw hook. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content. Example

[0029] The present invention discloses a float valve 5 tray with high mass transfer efficiency, which is generally installed in a separation tower or reaction tower in the chemical industry, petroleum refining and other industrial fields; the float valve 5 tray can effectively realize the contact and separation of gas and liquid, promote the material transfer between gas and liquid, and improve the separation efficiency; the design of the float valve 5 can enhance the fluidity of the liquid and reduce the retention of the liquid, thereby improving the mass transfer efficiency of the gas through the liquid; Figure 1 As shown, it includes a tower plate 1, which is a circular structure, and a thickened collar 2 is provided on the outer ring of the tower plate 1. The outer ring of the thickened collar 2 is detachably connected to the cylindrical inner wall of the separation tower via a connecting component 3. The design of the thickened collar 2 enhances the structural strength of the tower plate, and enables the tower plate to be detachably connected to the inner wall of the separation tower via the connecting component 3. This design can not only ensure the stability of the tower plate, but also facilitate subsequent maintenance and replacement.

[0030] like Figure 2 As shown, specifically, the connecting component 3 includes a protruding block arranged on the cylindrical inner wall of the separation tower and a special-shaped groove 301 arranged on the outer ring surface of the thickened collar 2, and the special-shaped groove 301 matches the protruding block; the design of the protruding block and the special-shaped groove 301 enables the tower plate to be firmly fixed on the inner wall of the separation tower; the shape of the special-shaped groove 301 matches the protruding block, which can effectively prevent the tower plate from being displaced or rotated during operation, thereby ensuring the stability and safety of the tower plate; due to the matching of the protruding block and the special-shaped groove 301, the tower plate can be self-aligned during installation, so that it is convenient to quickly and accurately fix it at a predetermined position; this design simplifies the installation process and improves work efficiency.

[0031] like Figure 2 As shown, the special-shaped groove 301 is provided with a first longitudinal guide portion 302, a transverse guide portion 303 and a second longitudinal guide portion 304 in sequence, wherein; the first longitudinal guide portion 302, the transverse guide portion 303 and the second longitudinal guide portion 304 on the special-shaped groove 301 form an inverted U-shaped structure, and the bottom of the first longitudinal guide portion 302 of the special-shaped groove 301 forms an opening 305 at the bottom of the thickened ring 2, and the raised block in the separation tower passes through the opening 305, the first longitudinal guide portion 302, the transverse guide portion 303 and the second longitudinal guide portion 304 in sequence; the combination of the first longitudinal guide portion 302, the transverse guide portion 303 and the second longitudinal guide portion 304 provides a clear guiding channel with an inverted U-shaped structure, so that the raised block can move smoothly along the predetermined path; this guidance ensures the smoothness and accuracy of the installation process and avoids the possibility of misalignment and incorrect installation.

[0032] like Figure 2As shown, when the protruding block is sequentially inserted into the first longitudinal guide portion 302, the transverse guide portion 303 and the second longitudinal guide portion 304, it can be effectively locked in the corresponding position of the second longitudinal guide portion 304 to form a stable connection; the design of the opening 305 allows the protruding block to be easily guided into the groove, and the inverted U-shaped structure ensures its transverse and longitudinal stability, so that the assembled parts will not loosen during operation; this structure is not limited to simple longitudinal embedding, but also allows the protruding block to be fine-tuned after installation to make it more ideally aligned, thereby ensuring the accuracy of the connection.

[0033] like Figure 2 As shown, a self-locking component 306 is provided in the transverse guide portion 303 of the special-shaped groove 301, and the self-locking component 306 includes a first fixed block 30601 and a second fixed block 30602, a transverse channel for the protruding block to pass through is formed between the first fixed block 30601 and the second fixed block 30602, and limiting holes are provided inside the first fixed block 30601 and the second fixed block 30602, and springs are provided in the limiting holes of the first fixed block 30601 and the second fixed block 30602, and one end of the spring is connected to a guide ball 30603, and the transverse channel formed between the first fixed block 30601 and the second fixed block 30602 is specifically used to allow the protruding block to pass through; when the protruding block passes through the transverse channel When the protrusion blocks are pushed outward, the spherical surface of the guide ball 30603 will be squeezed to make it move outward. During this process, the guide ball 30603 is located in the limiting hole and is connected to the spring. One end of the spring is connected to the guide ball 30603. When the protrusion blocks push the ball outward, once the protrusion blocks pass through, the restoring force of the spring will push the ball back to its original position to form an effective partition. This structure utilizes the elasticity of the spring to ensure that the protrusion blocks pass smoothly while quickly returning to their original position after passing through to block a part of the transverse channel, thereby achieving self-locking. The resetting of the guide ball 30603 will form a blockage in the channel, so that the protrusion blocks are protected by self-locking in the transverse channel without the need for additional locking measures to prevent accidental retreat or lateral displacement.

[0034] like Figure 2As shown, both sides of the first fixed block 30601 and the second fixed block 30602 are provided with guiding slopes 30604, and the setting of the guiding slopes 30604 is used to guide the protruding block into the transverse channel, and an oblique angle is formed between the guiding slopes 30604 and the protruding block; when the protruding block contacts the guiding slopes 30604, the inclined shape of the guiding slopes 30604 guides the protruding block to move and gradually position it into the transverse channel; this design changes the direction of force and uses gravity or external force to make the protruding block slide along the guiding slopes 30604, thereby effectively guiding it into the transverse channel; the existence of the guiding slopes 30604 can avoid the position deviation of the protruding block when it approaches the transverse channel, reduce the misalignment problem caused by errors, and ensure that the protruding block can accurately enter the designated channel; the design of the guiding slopes 30604 helps to achieve automatic alignment when the protruding blocks contact, making the entry process into the transverse channel smoother and avoiding the tedious manual adjustment.

[0035] like Figure 1 and 3 As shown, the tower plate 1 is provided with a plurality of mounting holes 4, and the mounting holes 4 are arranged at equal angles and divergently around the central axis of the tower plate 1. The equal angle arrangement of the mounting holes 4 enables the liquid to flow into the tower plate 1 evenly from different directions, thereby improving the uniformity of the distribution of the fluid and avoiding the situation where the liquid is too much or too little on one side; a floating valve 5 that can move up and down is arranged in the mounting hole 4 of the tower plate 1; the floating valve 5 is a valve that works on the principle of buoyancy; as the liquid level changes, the floating valve 5 will move up and down accordingly; when the liquid level rises, the floating valve 5 rises and closes the mounting hole 4 to prevent further entry of the liquid; and when the liquid level drops, the floating valve 5 drops to allow the liquid to flow in; this design utilizes the buoyancy characteristics of the floating valve 5 to achieve automatic regulation of the inflow and outflow of the liquid and the flow rate; moreover, the up and down movement of the floating valve 5 can automatically adjust the pressure in the system according to the real-time liquid height, ensuring that the liquid in the tower can be maintained within a suitable operating range, avoiding system failures caused by excessively high or low pressure.

[0036] like Figure 4As shown, the float valve 5 includes a valve body 501 and a valve cover 502. The valve body 501 is a cylindrical structure, and the interior of the valve body 501 is hollow. The hollow valve body 501 is connected to the mounting hole 4. The radial surface of the valve body 501 is provided with a plurality of rectangular through holes 503. The airflow passes through the valve body 501 and continuously impacts the valve cover 502, so that the valve body 501 is displaced upward inside the mounting hole 4. When the valve body 501 rises to a certain height, the rectangular through holes 503 are exposed to allow the airflow to pass through. The valve body 501 automatically opens under certain conditions to allow gas or liquid to flow. When the airflow weakens, the valve body 501 can be closed again under the action of gravity to prevent the reverse flow of the airflow. The design of the float valve 5 realizes the automatic adjustment of the airflow, and can automatically open or close according to the airflow intensity, reducing manual intervention.

[0037] like Figure 4 As shown, the radial surface of the valve body 501 is provided with a plurality of circular through holes 504, the cross-sectional dimensions of the circular through holes 504 are smaller than the cross-sectional dimensions of the rectangular through holes 503, and the circular through holes 504 generally have better fluidity in fluid mechanics than the rectangular through holes 503, and can effectively reduce flow resistance; this is because the circular holes have better fluid guidance, can guide the fluid flow in a smoother manner, and reduce the generation of flow separation and turbulence; since the cross-sectional dimensions of the circular through holes 504 are smaller than the rectangular through holes 503, the fluid flow rate stimulated by the circular through holes 504 will be relatively small, forming a higher pressure difference, so that the flow of the fluid can be more accurately controlled under different operating conditions; in this way, during the movement of the valve body 501, the pressure difference between the upper and lower parts of the valve body 501 can be better adjusted, thereby responding more sensitively to changes in airflow.

[0038] like Figure 4 As shown, an enlarged portion 505 is provided at the bottom of the valve body 501, and an outwardly expanded portion 506 is provided in the middle of the mounting hole 4 of the tower plate 1. The enlarged portion 505 of the valve body 501 slides in the outwardly expanded portion 506 of the mounting hole 4. The design of the enlarged portion 505 and the outwardly expanded portion 506 enables the valve body 501 to slide freely in the outwardly expanded portion 506 of the mounting hole 4, thereby achieving a good complementary fit; this design allows the valve body 501 to move during installation and operation while maintaining a stable connection.

[0039] like Figure 4As shown, the enlarged portion 505 of the valve body 501 and the outward expansion portion 506 of the mounting hole 4 are sealed and connected via a foldable flexible layer 507. The flexible layer 507 is provided with a plurality of V-shaped bending portions 508 on the sealing connection to accommodate the up and down sliding of the valve body 501. The foldable flexible layer 507 can provide necessary elasticity and deformation ability when the valve body 501 slides up and down, so that the connection between the valve body 501 and the tower plate 1 can move relatively freely. The V-shaped bending portion 508 design provides multi-directional flexibility. When the valve body 501 slides up and down, the bending portion 508 can be effectively deformed, thereby maintaining a sealed connection while reducing stress concentration caused by relative movement. The material properties of the flexible layer 507 generally have excellent sealing properties. Even in dynamic movement, the flexible design can effectively prevent fluid leakage and ensure the sealing of the system.

[0040] like Figure 6 As shown, a conical sleeve 509 with a bottom flared shape is fixedly installed at the bottom center position of the valve cover 502, and the upper surface of the valve body 501 is retracted to form a retracted portion, and the retracted portion of the valve body 501 matches the outer surface of the conical sleeve 509, and the outer surface of the conical sleeve 509 forms a conical fit with the retracted portion of the valve body 501, and the characteristics of the geometric shape can achieve stable positioning and self-locking; the conical design provides a surface contact point, so that when pressure is applied, this design can enhance the firmness of the connection; the cooperation between the conical sleeve 509 and the retracted portion provides a good self-locking effect, which can ensure the stability of the valve body 501 and the valve cover 502 under normal working conditions and reduce the risk of loosening.

[0041] like Figure 6 and Figure 7As shown, a plurality of claw hooks 5010 are provided at the bottom outer edge of the valve cover 502, and the claw hooks 5010 are folded downward at 30°; when the airflow passes through the folded edge of the claw hooks 5010, the design of the claw hooks 5010 can effectively guide the airflow, so that the airflow flows in a specific direction and angle; the 30° folding angle increases the interference surface when the airflow passes through, so that the airflow can be "pulled apart" to reduce concentrated impact; the existence of the claw hooks 5010 makes the airflow evenly dispersed when it flows out, thereby reducing the speed and impact of the airflow; the airflow is dispersed into multiple small streams during the outflow process, resulting in an increase in the gas-liquid contact area and enhanced contact efficiency of the gas-liquid phase; by evenly dividing the airflow at the claw hooks 5010, better airflow distribution can be achieved, thereby reducing the airflow in the tower plate 1. The uneven distribution improves the stability of the overall operation; the uniform airflow distribution makes the gas-liquid contact more complete, promotes material transfer and interaction, thereby improving the reaction efficiency and separation effect, and improving the performance of the tower plate 1; it reduces the direct impact between the airflows between the valves, reduces the interference and loss between the airflows, and avoids the reverse flow and noise caused by the violent impact of the airflow; by reducing the gas velocity ejected around the valve, the generation of mist entrainment can be reduced, the separation effect of the gas phase and the liquid phase can be improved, and the pollution of the liquid phase can be reduced; the uniform dispersion of the airflow and the lower ejection speed make the entire operation process more stable, reduce fluctuations, and improve the operational reliability of the entire equipment; the fine dispersion of the airflow increases the contact area and contact time between the gas and the liquid, which helps to enhance the reaction, absorption or evaporation process.

[0042] Working principle: The airflow passes through the valve body 501 and continuously impacts the valve cover 502, thereby causing the valve body 501 to move upward inside the mounting hole 4; when the valve body 501 rises to a set height, the rectangular through hole 503 is exposed, allowing the airflow to pass smoothly; under certain conditions, the valve body 501 will automatically open, allowing gas or liquid to flow.

[0043] As the airflow intensity weakens, the valve body 501 will automatically close under the action of gravity to prevent the reverse flow of the airflow; in addition, since the cross-sectional size of the circular through hole 504 is smaller than the channel formed by the rectangular through hole 503, the fluid flow rate generated by the former is relatively small, thereby generating a higher pressure difference; this design allows more precise control of the flow of the fluid under different operating conditions.

[0044] During the movement of the valve body 501, the pressure difference between the upper and lower parts can be more effectively adjusted, thereby achieving a sensitive response to changes in airflow; this mechanism improves the response speed and control accuracy of the system, ensuring that the regulation of fluid flow can be more efficient and reliable under various operating conditions.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A floating valve tray with high mass transfer efficiency, used for installation inside a separation tower, characterized in that: The invention comprises a tower plate (1), wherein a plurality of mounting holes (4) are arranged inside the tower plate (1), and a floating valve (5) movable up and down is arranged inside the mounting hole (4) of the tower plate (1); the floating valve (5) comprises a valve body (501) and a valve cover (502); the interior of the valve body (501) is hollow, the hollow valve body (501) and the mounting hole (4) are communicated with each other, and a plurality of rectangular through holes (503) are arranged on the radial surface of the valve body (501); and a plurality of circular through holes (504) are arranged on the radial surface of the valve body (501), and the cross-sectional dimensions of the circular through holes (504) are smaller than the cross-sectional dimensions of the rectangular through holes (503).

2. The floating valve tray with high mass transfer efficiency according to claim 1, characterized in that: A thickened collar (2) is provided on the outer ring of the tower plate (1); the outer ring of the thickened collar (2) is detachably connected to the cylindrical inner wall of the separation tower via a connecting component (3).

3. The floating valve tray with high mass transfer efficiency according to claim 2, characterized in that: The connecting component (3) comprises a protruding block arranged on the cylindrical inner wall of the separation tower and a special-shaped groove (301) arranged on the outer ring surface of the thickened collar (2) and matching with the protruding block.

4. The floating valve tray with high mass transfer efficiency according to claim 3, characterized in that: The special-shaped groove (301) is provided with a first longitudinal guide portion (302), a transverse guide portion (303) and a second longitudinal guide portion (304) in sequence, wherein the first longitudinal guide portion (302), the transverse guide portion (303) and the second longitudinal guide portion (304) on the special-shaped groove (301) form an inverted U-shaped structure, and the bottom of the first longitudinal guide portion (302) of the special-shaped groove (301) forms an opening (305) at the bottom of the thickened collar (2).

5. The valve tray with high mass transfer efficiency according to claim 4, characterized in that: A self-locking component (306) is provided in the transverse guide portion (303) of the special-shaped groove (301), and the self-locking component (306) comprises a first fixed block (30601) and a second fixed block (30602), a transverse channel for the protruding block to pass through is formed between the first fixed block (30601) and the second fixed block (30602), and limiting holes are provided inside the first fixed block (30601) and the second fixed block (30602), and springs are provided in the limiting holes of the first fixed block (30601) and the second fixed block (30602), and one end of the spring is connected to a guide ball (30603).

6. The floating valve tray with high mass transfer efficiency according to claim 5, characterized in that: Guide slopes (30604) are provided on both sides of the first fixing block (30601) and the second fixing block (30602).

7. The valve tray with high mass transfer efficiency according to claim 1, characterized in that: An enlarged portion (505) is provided at the bottom of the valve body (501), an outwardly enlarged portion (506) is provided in the middle of the mounting hole (4) of the tower plate (1), and the enlarged portion (505) of the valve body (501) slides in the outwardly enlarged portion (506) of the mounting hole (4).

8. The valve tray with high mass transfer efficiency according to claim 7, characterized in that: The enlarged portion (505) of the valve body (501) and the outwardly expanded portion (506) of the mounting hole (4) are sealed and connected via a foldable flexible layer (507), and a plurality of bending portions (508) with V-shaped cross sections are provided on the sealing connection of the flexible layer (507).

9. The valve tray with high mass transfer efficiency according to claim 1, characterized in that: The bottom of the valve cover (502) is provided with a conical sleeve (509) with a bottom that expands outward, and the upper surface of the valve body (501) is inwardly contracted to form a contracted portion, and the contracted portion of the valve body (501) matches the outer surface of the conical sleeve (509).

10. The valve tray with high mass transfer efficiency according to claim 9, characterized in that: A plurality of claw hooks (5010) are provided at the outer edge of the bottom of the valve cover (502), and the claw hooks (5010) are folded downward.

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