Tower plate flow guide device of rectifying tower

Abstract

The tower plate flow guiding device of the rectifying tower is characterized by comprising an upper tower plate, a lower tower plate, a supporting column, a movable column, a flow guiding block, a sealing ring and a driving assembly, the upper tower plate and the lower tower plate are both installed in a tower body, the upper tower plate is located above the lower tower plate, the upper tower plate and the lower tower plate are arranged to be of a conical structure, and the supporting column is arranged on the lower tower plate. An installation supporting column is arranged between the upper tower plate and the lower tower plate, a flow guide block is connected to a flow guide hole formed in the center of the upper tower plate, a sealing ring is arranged on the outer ring of the flow guide block, the flow guide block is connected with the bottom of a moving column, the moving column is connected with a driving assembly installed on the tower body, and the driving assembly is connected with the lower tower plate. The upper tower plate and the lower tower plate are both of a conical structure, so that the flowing speed of liquid is reduced and the rectification effect is enhanced in the process that the liquid flows from top to bottom, the meshes are formed in the tower plates, the through holes are formed in the flow guide blocks, the liquid is drained and dispersed, gas and liquid are in full contact, and the rectification efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rectifying column equipment technical field especially relates to the tray guide device of rectifying column. BACKGROUND

[0002] Rectifying column is a kind of tower type vapor-liquid contactor for rectification, its principle is to use the different volatility (i.e. the nature of the vapor pressure of each component at the same temperature) of each component in mixture, make the light component (low-boiling substance) in liquid phase transfer to gas phase, and the heavy component (high-boiling substance) in gas phase transfer to liquid phase, to realize separation. Among them, tray-type rectifying column is a type widely used, its main structure is that multiple trays are arranged in the tower body of rectifying column, so that liquid flows through each tray from top to bottom, gas flows upward from the bottom of tower body, so that gas and liquid contact, and the separation of light component and heavy component is completed.

[0003] In the prior art, the Chinese utility model with patent No. CN218248583U discloses a tray guide device of rectifying column, which comprises multiple overlapped mesh trays, the central part of each mesh tray is provided with a guide hole, the guide holes are coaxially arranged, and a guide column penetrating through the multiple guide holes is further included, both ends of the guide column extend to the outside of the mesh trays at the top and bottom; a sealing block capable of sealing the guide hole is arranged below the mesh tray at the bottom of the guide column on the guide column, and a driving member for driving the guide column to move is further included. By moving the guide column, the guide hole can be opened, and the liquid can be guided to avoid overflow.

[0004] In the use of the above prior art, by controlling the movement of the guide column in the guide hole arranged at the center of the tray, the opening and closing of the guide hole are realized to avoid overflow. However, it is found in use that when all the guide holes are in an open state, the liquid accumulated on the uppermost tray flows straight from the guide holes of multiple trays to the tower bottom, so that this part of liquid does not fully contact with the upward flowing gas, reducing the rectification effect. Therefore, it is urgent to optimize and improve the current tray guide device to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the above technical problems, the utility model provides a tray guide device of rectifying column, which is characterized by comprising an upper tray, a lower tray, a support column, a moving column, a guide block, a sealing ring and a driving assembly, the upper tray and the lower tray are both installed in the tower body, the upper tray is located above the lower tray, the upper tray and the lower tray are arranged in a conical structure, the support column is arranged between the upper tray and the lower tray, the guide block is connected at the guide hole arranged at the central position of the upper tray, the sealing ring is arranged at the outer ring of the guide block, the bottom of the guide block is connected with the moving column, and the moving column is connected with the driving assembly installed on the tower body,

[0006] The flow guide block is provided with through holes.

[0007] Both the upper and lower trays are provided with mesh.

[0008] The drive assembly consists of an electric actuator, a slider, a communicating vessel, and a float switch. Both the electric actuator and the communicating vessel are mounted on the tower body. The telescopic end of the electric actuator is connected to a slider slidably connected within the communicating vessel. A communicating fluid is filled between the two sliders in the communicating vessel. A float switch is installed at the end of the communicating vessel that extends into the tower body.

[0009] Specifically, the float switch is used to control the start and stop of the electric actuator.

[0010] The beneficial effects of this utility model are:

[0011] The upper and lower trays of this invention are both designed with a conical structure, so that the outer edge of the tray is inclined to the center. This reduces the liquid flow velocity during the downward flow of the liquid, thereby increasing the residence time of the liquid on the tray and enhancing the distillation effect. The trays are provided with mesh and the guide blocks are provided with through holes to guide and disperse the liquid, so that the gas and liquid can fully contact each other and improve the distillation efficiency.

[0012] When liquid accumulates on the upper tray, the float switch gradually rises to the preset value, activating the electric push rod. Through the fluid transmission in the communicating vessel, the moving column moves downward, controlling the guide block to move downward. At this time, the guide hole in the center of the upper tray opens. The diameter of the guide hole is much larger than the mesh for drainage. The accumulated liquid quickly flows to the lower tray and is dispersed by the lower tray, preventing excessive liquid accumulation from increasing the pressure drop on the upper tray. In addition, a support column is installed between the upper and lower trays to increase the support for the upper tray. Attached Figure Description

[0013] Figure 1 This is a schematic cross-sectional view of the tray guiding device of the distillation column of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure at point A of the tray guiding device of the distillation column of this utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the tray guiding device of the distillation column of this utility model during the flow guiding process;

[0016] Figure 4 This is a schematic diagram of the structure of the tray guide device of the distillation column of this utility model at the tray.

[0017] As shown in the figure: 1. tower body, 2. upper tower plate, 21. mesh, 22. guide hole, 3. lower tower plate, 4. guide block, 41. through hole, 5. sealing ring, 6. support column, 7. moving column, 81. electric push rod, 82. communication device, 83. slider, 84. communication liquid, 85. float switch. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0021] Embodiment 1

[0022] As shown in the figure, the upper tower plate 2 and the lower tower plate 3 are both mounted in the tower body 1, the upper tower plate 2 and the lower tower plate 3 are both provided with mesh 21, the upper tower plate 2 is located above the lower tower plate 3, the upper tower plate 2 and the lower tower plate 3 are provided in a conical structure, and the upper tower plate 2 and the lower tower plate 2 are mirror image arranged and mounted, and a support column 6 is arranged between the upper tower plate 2 and the lower tower plate 3 to support the upper tower plate 2, a guide hole 22 arranged at the center position of the upper tower plate 2 is connected with a guide block 4, the guide block 4 is provided with a through hole 41, and a sealing ring 5 is arranged at the outer circle of the guide block 4, the cross section of the sealing ring 5 is in a trapezoidal structure,

[0023] The flow guide block 4 is connected with the bottom of the moving column 7, the moving column 7 is connected with a slider 83 in a driving assembly installed on the tower body, the two sliders 83 slidingly connected in the communicating vessel 82 are filled with communicating liquid, the other slider 83 is connected with the telescopic end of the electric push rod 81, the electric push rod 81 and the communicating vessel 82 are both installed on the tower body 1, the float switch 85 is installed on the communicating vessel 82 at a position extending into the tower body 1, and the float switch is used for controlling the start and stop of the electric push rod.

[0024] Embodiment 2

[0025] When the utility model is used, the upper tower plate 2 and the lower tower plate 3 designed in the utility model are both set as conical structures, so that the outer edge to the center of the tower plate is inclined, so that the liquid flow speed is reduced during the self-top-to-bottom flowing process, and then the liquid residence time on the tower plate is increased, the rectification effect is enhanced, the mesh 21 on the tower plate and the through hole 41 on the flow guide block 4 are set, the liquid is guided and dispersed, so that the gas-liquid is fully contacted, and the rectification efficiency is improved.

[0026] When the liquid is accumulated on the upper tower plate 2, the float head of the float switch 85 gradually rises to the preset value, the electric push rod 81 is started, the sliding block 83 at one end is pushed down by the driving action of the communicating liquid in the communicating vessel 82, the sliding block 83 at the other end is also lowered, the moving column 7 is lowered, the flow guide block 4 is controlled to be lowered, at this time, the flow guide hole 22 arranged at the center of the upper tower plate 2 is opened, since the diameter of the flow guide hole 22 is much larger than that of the mesh 21 for guiding flow, the liquid accumulated on the upper tower plate 2 is quickly dispersed and introduced into the lower tower plate 3, and the liquid is dispersed and guided by the lower tower plate 3, so that the liquid accumulation is avoided to increase the pressure drop of the upper tower plate 2, and the support column 6 is arranged between the upper tower plate 2 and the lower tower plate 3, so that the support effect of the upper tower plate 2 is increased.

[0027] After the accumulated liquid is slowly dispersed and guided, the float head of the float switch 85 is also gradually lowered and reset, the telescopic end of the electric push rod 81 is reset, the moving column 7 is moved up, the flow guide block 4 is moved up, and the sealing ring 5 arranged in the trapezoidal structure at the outer circle of the flow guide block 4 is slowly inserted into the inner wall of the flow guide hole 22, so that the flow guide hole 22 is closed.

[0028] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The various components mentioned in the utility model are common technology in the prior art, which should be understood by the skilled person in the industry. The utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A flow guide for a tray of a distillation column, characterized in that The application relates to a tower body, which comprises an upper tower plate, a lower tower plate, supporting columns, moving columns, flow guide blocks, sealing rings and a driving assembly, wherein the upper tower plate and the lower tower plate are installed in the tower body, the upper tower plate is located above the lower tower plate, the upper tower plate and the lower tower plate are arranged in a conical structure, supporting columns are arranged between the upper tower plate and the lower tower plate, flow guide blocks are connected to flow guide holes arranged at the central position of the upper tower plate, sealing rings are arranged at the outer circle of the flow guide blocks, the flow guide blocks are connected to the bottom of the moving columns, and the moving columns are connected to the driving assembly installed on the tower body.

2. A flow guide for a tray of a rectification column according to claim 1, characterized in that The driving assembly is composed of an electric push rod, sliding blocks, a communicating device and a float switch, wherein the electric push rod and the communicating device are installed on the tower body, the telescopic end of the electric push rod is connected to the sliding blocks slidingly connected in the communicating device, two sliding blocks in the communicating device are filled with communicating liquid, and the float switch is arranged at the position of one end of the communicating device extending into the tower body.

3. The flow guide for a tray of a rectifying column according to claim 1, wherein The flow guide blocks are provided with through holes.

4. The flow guide for a tray of a rectifying column according to claim 1, wherein The upper tower plate and the lower tower plate are both provided with mesh holes.

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