High-flux tower tray structure

Abstract

The utility model provides a large-flux tray structure, which relates to the technical field of trays and comprises a tray main body, a liquid receiving plate is arranged on one side of the tray main body, an overflow weir is arranged on one side, far away from the liquid receiving plate, of the tray main body, first through holes are formed in the surface of the tray main body in an array manner, and guide holes are formed in two sides of each first through hole; a first floating valve is arranged in the first through hole, guide rods are arranged on the two sides of the first floating valve, and the air inflow is further increased, so that when the thrust of impact of steam on the first floating valve is larger than the elastic force of reset springs on the two sides of the first floating valve, the first floating valve is impacted to be opened upwards; the opening degree of the first floating valve is increased along with the increase of the further increased steam quantity, so that more steam is allowed to pass through the first through hole and be subjected to gas-liquid mixing with liquid at the top of the tray main body, and the large-aperture first through hole is adapted to large-flux gas-liquid mixing; the defect that a floating valve through hole is fixed and is difficult to adapt to large fluctuation of gas phase flow is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to tray technical field especially relates to a big flux's tray structure. BACKGROUND

[0002] According to the round type float valve tray of Chinese publication (announcement) no. CN104984720B discloses a kind of round type float valve tray, belong to general physical separation operation device technical field.The round type float valve tray includes tower plate and the float valve that can be moved up and down, installation hole for float valve installation is made on tower plate, float valve includes the circular valve cover arranged above tower plate and the valve leg that extends to the lower side of tower plate from the periphery of valve cover downwards, valve leg is spaced distribution along the periphery of valve cover, at least two upward arching tongue holes are provided on valve cover, the periphery of valve cover is provided with downwardly folded sawtooth edge, the sawtooth edge of valve cover is used to abut on the upper surface of tower plate when float valve falls, a ring of protrusions is fixed on the bottom surface of valve cover, tongue hole is located in the ring of protrusions of valve cover, cavity is made in valve cover, cavity is filled with polystyrene foam layer.The round type float valve tray has the advantages that gas flow is dispersed fine and uniform, and gas-liquid contact is sufficient.

[0003] The above-mentioned technology and prior art float valve tray are difficult to adapt to the large fluctuation of gas phase flow when used because the float valve through hole is fixed.In high gas phase flow conditions, the gas phase passage cannot be widened in time, resulting in obstruction of gas phase flux;when the gas phase flow is low, the float valve is opened too large, the gas-liquid contact is poor, and the mass transfer efficiency is affected. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings that float valve through hole is fixed and difficult to adapt to the large fluctuation of gas phase flow in prior art, and provides a kind of tray structure of big flux.

[0005] To achieve the above object, the utility model adopts the following technical scheme: a kind of tray structure of big flux, including tower plate main body, the side of the tower plate main body is equipped with liquid receiving plate, the side of the tower plate main body away from liquid receiving plate is equipped with overflow weir, the surface of the tower plate main body is equipped with first through hole in array, the two sides of the first through hole are equipped with guide hole, the inside of the first through hole is equipped with first float valve, the two sides of the first float valve are equipped with guide rod, the outside of the guide rod is surrounded by reset spring, the top surface of the first float valve is equipped with second through hole, the inside of the second through hole is equipped with second float valve, the middle of the first float valve is equipped with connecting rod, the top of the connecting rod is equipped with fan blade, the top of the fan blade is equipped with nut, the outside of the first float valve is equipped with damping ring.

[0006] Preferably, the liquid receiving plate and the overflow weir are mirror image arranged with the tower plate main body as center, and the liquid receiving plate and the overflow weir are both bolted to the tower plate main body.

[0007] Preferably, the first float valves are all installed in the first through holes on the surface of the tray body, and the second float valves are all installed in the second through holes on the top surface of the first float valves.

[0008] Preferably, the damping rings are all installed on the top ends of the first float valves, and the damping rings are all threadedly connected with the first float valves.

[0009] Preferably, the two guide rods are all integrally formed with the first float valves, and the guide holes of the guide rods of the first float valves.

[0010] Preferably, the connecting rods are all arranged in the middle of the first float valves, and the connecting rods are all welded with the first float valves, and the connecting rods are all T-shaped.

[0011] Preferably, the fan blades are all sleeved on the top ends of the connecting rods, the nuts are all installed on the top surfaces of the connecting rods, and the nuts are all threadedly connected with the connecting rods.

[0012] Beneficial effects

[0013] In the utility model, when steam rises and the impact force of the steam is less than the elastic force of the reset springs on the two sides of the first float valve, the steam will impact the second float valve in the second through hole through the second through hole on the top surface of the first float valve, so that the second float valve is opened upward. The opening degree of the second float valve increases with the increase of the steam volume, so that more steam is allowed to pass through the second through hole and mix with the liquid on the top of the tray body. When the feed volume or the air volume is too large, the further increased air volume makes the pushing force of the steam on the first float valve greater than the elastic force of the reset springs on the two sides of the first float valve, so that the first float valve is impacted and opened upward. The opening degree of the first float valve increases with the increase of the further increased steam volume, so that more steam is allowed to pass through the first through hole and mix with the liquid on the top of the tray body. The first through hole with large aperture is used to adapt to the large flux of gas-liquid mixing, and the defect that the through hole of the float valve is fixed and difficult to adapt to the large fluctuation of the gas phase flow is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an isometric view of the utility model;

[0015] Figure 2 It is a lower view of the utility model;

[0016] Figure 3 It is a sectional view of the utility model at A-A; Figure 2

[0017] Figure 4 It is a partial parts drawing of the utility model.

[0018] Legend:

[0019] ​1, tray body; 2, liquid receiving plate; 3, overflow weir; 4, first through hole; 5, second through hole; 6, first float valve; 7, second float valve; 8, guide hole; 9, guide rod; 10, return spring; 11, connecting rod; 12, fan blade; 13, nut; 14, damping ring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] The specific embodiments of the utility model are described below in combination with the drawings. Embodiment one

[0023] Reference Figures 1-4 A large-flux tray structure, comprising a tray body 1, one side of the tray body 1 is provided with a liquid receiving plate 2, the side of the tray body 1 away from the liquid receiving plate 2 is provided with an overflow weir 3, the surface of the tray body 1 is provided with a first through hole 4, both sides of the first through hole 4 are provided with a guide hole 8, the inside of the first through hole 4 is provided with a first float valve 6, both sides of the first float valve 6 are provided with a guide rod 9, the outside of the guide rod 9 is provided with a return spring 10 around, the top surface of the first float valve 6 is provided with a second through hole 5, the inside of the second through hole 5 is provided with a second float valve 7, the middle of the first float valve 6 is provided with a connecting rod 11, the top of the connecting rod 11 is provided with a fan blade 12, the top of the fan blade 12 is provided with a nut 13, the outside of the first float valve 6 is provided with a damping ring 14, the liquid receiving plate 2 and the overflow weir 3 are mirror image arranged with the tray body 1 as the center, and the liquid receiving plate 2 and the overflow weir 3 are both bolted with the tray body 1, the first float valve 6 is installed in the first through hole 4 on the surface of the tray body 1, and the second float valve 7 is installed in the second through hole 5 on the top surface of the first float valve 6, the damping ring 14 is installed at the top end of the first float valve 6, and the damping ring 14 is threadedly connected with the first float valve 6, the two guide rods 9 are integrally formed with the first float valve 6, and the guide rod 9 of the first float valve 6 is installed in the guide hole 8 of the tray body 1, the connecting rod 11 is arranged in the middle of the inside of the first float valve 6, and the connecting rod 11 is welded with the first float valve 6, the connecting rod 11 is T-shaped, the fan blade 12 is sleeved on the top end of the connecting rod 11, the nut 13 is installed on the top surface of the connecting rod 11, and the nut 13 is threadedly connected with the connecting rod 11.

[0024] The tray body 1 is the basic structure of the whole tray, which provides installation and working platform for other components. It carries the flow of liquid and the gas-liquid mixing and mass transfer process. The overflow weir 3 is arranged at the top of the tray body 1, which is used to maintain the liquid level height on the tray body 1. When the liquid flows into the tray body 1, the overflow weir 3 blocks the liquid to accumulate to a certain height on the tray body 1, and then the liquid overflows from the top of the overflow weir 3 to the next layer of tray. It ensures that the liquid has enough residence time on the tray body 1 to make the gas-liquid fully contact. The liquid receiving plate 2 is installed on the right side of the tray body 1, which is used to receive the liquid overflowing from the upper layer of tray and evenly distribute it to the tray body 1 of the current layer, reducing the impact of the liquid on the tray body 1, making the liquid enter the tray body 1 smoothly, and playing the role of buffering and distributing the liquid. The first through hole 4 and the second through hole 5 are important structures on the tray body 1, which provide a flow path for the gas phase. The first float valve 6 is inserted into the first through hole 4, and since the damping ring 14 is installed at the top end of the first float valve 6, it is noted that the damping ring 14 is just a metal ring used to prevent the first float valve 6 from falling out of the first through hole 4, and the second float valve 7 is installed in the second through hole 5 on the top surface of the first float valve 6. The guide rod 9 is integrally formed with the first float valve 6 and is installed in the guide hole 8 of the tray body 1. The guide rod 9 moves up and down along the guide hole 8. Since the reset spring 10 is sleeved on the two guide rods 9, the spring force of the reset spring 10 plays a role in balancing the steam impact force. When the steam impact force is less than the spring force of the reset spring 10, the reset spring 10 keeps the first float valve 6 closed; when the steam impact force is greater than the spring force of the reset spring 10, the reset spring 10 is compressed, and the first float valve 6 is opened. The spring force and characteristics of the reset spring 10 directly affect the opening pressure and sensitivity of the first float valve 6, thereby affecting the flux regulation performance of the whole tray. The first float valve 6 and the second float valve 7 are the key components of the tray structure to realize flux regulation. When the steam rises and the impact degree is less than the spring force of the reset spring 10 on both sides of the first float valve 6, the first float valve 6 remains in a closed state or is only opened to a small degree, and the gas phase mainly flows through the second float valve 7 for flow and mass transfer; when the gas inlet quantity further increases, the steam impact force on the first float valve 6 is greater than the spring force of the reset spring 10, the first float valve 6 is impacted and opened upward, and its opening degree increases with the increase of the steam quantity, thereby allowing more steam to pass through the first through hole 4 and mix with the liquid on the top of the tray body 1. In this way, the first float valve 6 can automatically adjust the opening degree according to the change of the gas phase flow, adapt to the flux demand under different working conditions, especially when the gas phase flow fluctuates greatly, the first through hole 4 with a large aperture is used to ensure the smooth gas-liquid mixing. The connecting rod 11 is arranged in the middle of the first float valve 6 and is welded with the first float valve 6. The connecting rod 11 is mainly used to support and connect the fan blade 12. The fan blade 12 is sleeved on the top end of the connecting rod 11, and when the gas phase passes through the first float valve 6, the airflow will drive the fan blade 12 to rotate.The rotating fan blade 12 can further disturb the gas phase, making it more evenly dispersed, breaking the possible gas phase aggregation or uneven flow phenomenon, increasing the gas-liquid contact area, thereby improving the mass transfer efficiency. The nut 13 is installed on the top surface of the connecting rod 11 and is screwed with the connecting rod 11. The main function of the nut 13 is to fix the fan blade 12 and prevent the fan blade 12 from falling off the connecting rod 11 during rotation, ensuring the stability and reliability of the installation of the fan blade 12. Embodiment two:

[0026] Referring to Figures 1-4 A large-flux tray structure further based on the basic structure in embodiment one, the specific working process is as follows: in the tray structure, the gas-liquid two-phase carries out mass transfer and heat transfer processes on the tray body 1. The liquid is uniformly distributed on the tray body 1 by the liquid receiving plate 2, and a certain liquid layer height is formed on the tray body 1 by the blocking of the overflow weir 3. The gas phase rises from below the tray, first impacts the second float valve 7 through the second through hole 5 on the top surface of the first float valve 6. When the gas phase flow is small, the impact force of the steam is less than the elastic force of the reset spring 10 on both sides of the first float valve 6, at this time the second float valve 7 is opened upward under the impact of the steam, and the opening degree increases with the increase of the steam volume. The gas phase passes through the second float valve 7 and the liquid on the tray to carry out preliminary gas-liquid mixing. With the increase of the gas phase flow, when the steam impact on the first float valve 6 is greater than the elastic force of the reset spring 10 on both sides of the first float valve 6, the first float valve 6 is impacted and opened upward, and the opening degree increases with the increase of the further increased steam volume. At this time, the gas phase can not only pass through the second float valve 7, but also pass through the first through hole 4 with large aperture and the liquid on the top of the tray body 1 to carry out more sufficient gas-liquid mixing, to adapt to the gas-liquid mixing demand of large flux. In the process of the gas phase passing through the first float valve 6, the gas flow drives the fan blade 12 installed at the top end of the connecting rod 11 to rotate, and the rotating fan blade 12 further disturbs the gas phase, making it more evenly dispersed, increasing the gas-liquid contact area, and improving the mass transfer efficiency. At the same time, it also assists to adjust the flow of the gas phase to a certain extent, enhances the adaptability of the tray to different working conditions. When the liquid volume on the tray reaches a certain degree, the excess liquid will flow to the next layer of tray over the overflow weir 3, maintaining the stable liquid layer height and liquid level on the tray, ensuring that the gas-liquid has enough contact time and space on the tray, thereby realizing the efficient and stable operation of the whole tray.

[0027] In summary:

[0028] 1. When steam rises and its impact force is less than the elastic force of the return springs 10 on both sides of the first float valve 6, the steam will impact the second float valve 7 inside the second through hole 5 on the top surface of the first float valve 6, causing the second float valve 7 to open upwards. The opening degree of the second float valve 7 increases with the increase of steam volume, thus allowing more steam to pass through the second through hole 5 and mix with the liquid at the top of the tray body 1. When the feed rate or air intake is too large, the further increase in air intake makes the thrust of the steam impacting the first float valve 6 greater than the elastic force of the return springs 10 on both sides of the first float valve 6, causing the first float valve 6 to be impacted and opened upwards. The opening degree of the first float valve 6 increases with the further increase of steam volume, thus allowing more steam to pass through the first through hole 4 and mix with the liquid at the top of the tray body 1. The large-diameter first through hole 4 is used to adapt to the large flow rate of gas-liquid mixing, solving the disadvantage that the fixed float valve through hole is difficult to adapt to large fluctuations in gas flow rate.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-flux tray structure comprising a tray body (1), characterized in that: The side of the tray body (1) is provided with a liquid receiving plate (2), the side of the tray body (1) away from the liquid receiving plate (2) is provided with an overflow weir (3), the surface of the tray body (1) is provided with a first through hole (4), the two sides of the first through hole (4) are provided with guide holes (8), the inside of the first through hole (4) is provided with a first float valve (6), the two sides of the first float valve (6) are provided with guide rods (9), the outside of the guide rods (9) is surrounded by return springs (10), the top surface of the first float valve (6) is provided with a second through hole (5), the inside of the second through hole (5) is provided with a second float valve (7), the middle of the first float valve (6) is provided with a connecting rod (11), the top of the connecting rod (11) is provided with a fan blade (12), the top of the fan blade (12) is provided with a nut (13), and the outside of the first float valve (6) is provided with a damping ring (14).

2. A high- flux tray structure according to claim 1, characterized in that: The liquid receiving plate (2) and the overflow weir (3) are mirror images of the tray body (1), and the liquid receiving plate (2) and the overflow weir (3) are bolted to the tray body (1).

3. A high- flux tray structure according to claim 1, characterized in that: The first float valve (6) is installed in the first through hole (4) on the surface of the tray body (1), and the second float valve (7) is installed in the second through hole (5) on the top surface of the first float valve (6).

4. A high- flux tray structure according to claim 1, characterized in that: The damping ring (14) is installed at the top end of the first float valve (6), and the damping ring (14) is threadedly connected with the first float valve (6).

5. A high- flux tray structure according to claim 1, characterized in that: The two guide rods (9) are integrally formed with the first float valve (6), and the guide rods (9) of the first float valve (6) are installed in the guide holes (8) of the tray body (1).

6. A high- flux tray structure according to claim 1, characterized by: The connecting rod (11) is arranged in the middle of the first float valve (6), and the connecting rod (11) is welded to the first float valve (6), and the connecting rod (11) is T-shaped.

7. A high- flux tray structure according to claim 1, characterized by: The fan blade (12) is sleeved on the top end of the connecting rod (11), the nut (13) is installed on the top surface of the connecting rod (11), and the nut (13) is threadedly connected with the connecting rod (11).

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