Tower body structure of ultra-large rectifying tower

Abstract

The utility model discloses a tower body structure of an ultra-large rectifying tower, belongs to the technical field of industrial equipment, and provides the tower body structure of the ultra-large rectifying tower, which is more convenient to overhaul and comprises a base, a tower body is fixedly connected onto the base, a gas phase discharge end is arranged at the top of the tower body, and a liquid phase discharge end is arranged at the bottom of the tower body. A maintenance window is formed in the side wall of the tower body, a turnover door is rotationally connected into the maintenance window, a hydraulic cylinder is further connected to the base, a ladder is rotationally connected to the upper end of the hydraulic cylinder, the ladder is rotationally connected with the turnover door, the hydraulic cylinder is suitable for changing the dip angle of the turnover door through the ladder, and the turnover door has a horizontal limit angle and a vertical limit angle. The lifting escalator structure is designed to drive the multiple turnover door structures at the same time, so that a maintainer can enter and exit from the interior of the tower body from different heights outside the tower body, the activity amount of the maintainer in the tower body is reduced, and detection and maintenance operation in the tower body is more convenient; and the additional structure is relatively simple.

Description

Technical Field

[0001] This application relates to the field of industrial equipment technology, and in particular to the tower structure of an ultra-large distillation column. Background Technology

[0002] To ensure the operational stability of distillation columns, regular maintenance of the column interior is usually required. Existing technologies typically include manholes on the side walls of the column for maintenance workers to enter. However, most existing columns place these manholes near the top, requiring workers to climb to a higher position to enter. Once inside the distillation column, workers can only descend via pre-designed channels in the middle of the trays. After each tray has been inspected and maintained, workers must climb back up inside the column. Since the channels in the middle of the trays are not large, moving up and down inside the column is time-consuming and laborious. Summary of the Invention

[0003] The purpose of this application is to provide a column structure for an ultra-large distillation column that makes maintenance more convenient.

[0004] To achieve the above objectives, this application provides a column structure for an ultra-large distillation column: including a base, a column body fixedly connected to the base, a gas phase discharge end provided at the top of the column body, a liquid phase discharge end provided at the bottom of the column body, an inspection window provided on the side wall of the column body, a tilting door rotatably connected inside the inspection window, a hydraulic cylinder also connected to the base, a ladder rotatably connected to the upper end of the hydraulic cylinder, the ladder being rotatably connected to the tilting door, and the hydraulic cylinder being adapted to change the tilting angle of the tilting door through the ladder, thereby controlling the opening and closing state of the tilting door.

[0005] As a preferred embodiment, the flip door has two extreme angles, horizontal and vertical. A fixed shaft is fixedly connected between the two inner sidewalls of the inspection window. The fixed shaft is close to the bottom of the inspection window. The flip door has a shaft hole that passes through the opposite sidewalls, suitable for the fixed shaft to pass through to form a rotating pair. The outer side of the flip door is suitable for fitting against the inner bottom surface of the inspection window. The inner wall of the inspection window also has a limiting frame. The plane of the limiting frame is parallel to the axis of the tower body. The inner side of the flip door is suitable for fitting against the outer end face of the limiting frame to limit the extreme position of the flip door.

[0006] As a preferred embodiment, the inner side of the flip door is also fixedly connected with an embedded sealing plate, which is suitable for embedding in the limiting frame to block the gap formed by the limiting frame on the inner wall of the column body, so that the column body has a smooth and flat inner wall when closed, reducing the impact of the flip door on the distillation process.

[0007] As a preferred embodiment, the inner side of the flip door is provided with a sealing ring surrounding the embedded sealing plate, which is suitable for pressing against the outer end face of the limiting frame, thereby further improving the sealing effect of the flip door in the closed state.

[0008] As a preferred embodiment, the tower body is fixedly connected to the base by a bracket, and there are several brackets arranged at equal intervals around the axis of the tower body, so that the pressure exerted by the tower body on the base is more even.

[0009] As a preferred embodiment, the escalator includes a pair of parallel longitudinal beams, with a crossbeam fixedly connected between the longitudinal beams. There are several crossbeams arranged parallel to each other at equal intervals. The flip-up door is rotatably connected to the crossbeams to form a linkage structure. When the escalator moves up and down, the flip-up door will deflect.

[0010] As a preferred embodiment, the outer side of the flip-up door has a flip-up hinge frame, and the side of the crossbeam has a horizontal connecting frame. The horizontal connecting frame is rotatably connected to the flip-up hinge frame via a hinge shaft. The lower ends of the two longitudinal beams are fixedly connected to a traction plate. The bottom surface of the traction plate has a lower hinge frame, which is also rotatably connected to the movable end of the telescopic rod of the hydraulic cylinder via a hinge shaft, ensuring that the escalator can adaptively deflect angles when rising and falling.

[0011] As a preferred embodiment, there are several combinations of inspection windows and flip doors, and the inspection windows and flip doors are arranged at equal intervals along the height direction of the tower body, corresponding to the spaces that are equally divided by the tower plates inside the tower body.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing a liftable escalator structure to simultaneously drive multiple flip-door structures, maintenance personnel can enter and exit the tower from different heights outside the tower, reducing the amount of activity of maintenance personnel inside the tower and making the installation, inspection and maintenance operations inside the tower more convenient.

[0014] (2) Since the linkage structure of the escalator and the flip door is driven by only one hydraulic cylinder, the transmission structure is relatively simple and will not increase the structural complexity of the tower body excessively. Therefore, the failure rate of the moving escalator and the flip door will be relatively low, and the additional structure is basically exposed on the outside of the tower body, which makes it convenient to inspect and maintain the linkage structure itself. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the ultra-large distillation column.

[0016] Figure 2 This is a three-dimensional sectional view of the structure of the ultra-large distillation column.

[0017] Figure 3 The column structure of this ultra-large distillation column Figure 2 A magnified view of part A.

[0018] Figure 4 This is a three-dimensional structural diagram of the hydraulic cylinders and the connection between the tilting door and the escalator in the tower body of this ultra-large distillation column.

[0019] Figure 5 The column structure of this ultra-large distillation column Figure 4 A magnified view of section B.

[0020] Figure 6 This is a three-dimensional structural diagram of the ladder in the structure of this ultra-large distillation column.

[0021] Figure 7 This is a three-dimensional sectional view of the tower body of this ultra-large distillation column.

[0022] Figure 8 The column structure of this ultra-large distillation column Figure 7 A magnified view of a portion of point C.

[0023] In the diagram: 1. Tower body; 101. Gas phase discharge end; 102. Liquid phase discharge end; 103. Inspection window; 104. Limit frame; 105. Fixed shaft; 2. Ladder; 201. Crossbeam; 202. Longitudinal beam; 203. Traction plate; 204. Lower hinge frame; 205. Horizontal transfer frame; 3. Support; 4. Hydraulic cylinder; 5. Tilting door; 501. Embedded sealing plate; 502. Shaft hole; 503. Tilting hinge frame; 6. Hinge shaft; 7. Base. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0028] like Figure 1-8 The structure of the ultra-large distillation column shown includes a base 7 directly connected to the ground, on which the column body 1 is fixedly connected. Since the specific internal structure of the column body 1 is not the subject of this application, it will not be described in detail here. The specific internal structure of the column body 1 can adopt any of the existing technologies. The column body 1 is fixedly connected to the base 7 by a support 3, so that the main body of the column body 1 is kept at a certain distance from the base 7 and the ground. Moreover, the support 3 is usually designed with a shock-absorbing structure to further reduce the impact of the ground on the column body 1. There are several supports 3. In this embodiment, three supports 3 are set. These supports 3 are equidistantly arranged around the axis of the column body 1, which can well ensure the stability of the column body 1. The top of the column body 1 is provided with a gas phase discharge end 101, which is connected to the gas phase component output pipe. The bottom of the column body 1 is provided with a liquid phase discharge end 102, which is connected to the liquid phase component output pipe.

[0029] The side wall of the tower body 1 is provided with an inspection window 103, which facilitates workers to enter the interior of the tower body 1 for installation, inspection and maintenance. A hinged door 5 is rotatably connected inside the inspection window 103 to close it. Several combinations of inspection windows 103 and hinged doors 5 are available, and the inspection windows 103 and hinged doors 5 are equidistantly arranged along the height direction of the tower body 1. This allows for inspection and maintenance at different heights inside the tower body 1. A hydraulic cylinder 4 is also connected to the base 7, which can provide a large thrust and maintain support. To ensure stability, the upper end of the hydraulic cylinder 4 is rotatably connected to the ladder 2, which facilitates workers to climb along the tower body 1. The ladder 2 includes a pair of parallel longitudinal beams 202, which are usually kept vertical. The lower ends of the two longitudinal beams 202 are fixedly connected to a horizontal traction plate 203. The bottom surface of the traction plate 203 has a lower hinge frame 204, which is rotatably connected to the movable end of the telescopic rod of the hydraulic cylinder 4 through the hinge shaft 6. In this way, when the ladder 2 is driven to rise and fall by the hydraulic cylinder 4, it has sufficient freedom to adapt to the angle deflection.

[0030] The escalator 2 and the flip door 5 are also rotatably connected. There are several crossbeams 201 fixedly connected between the longitudinal beams 202. These crossbeams 201 are arranged parallel to each other at equal intervals. In fact, the flip door 5 is rotatably connected to the crossbeams 201. The outer side of the flip door 5 has a flip hinge frame 503. The side of the corresponding crossbeam 201 has a horizontal connecting frame 205. However, not all crossbeams 201 have a horizontal connecting frame 205. Instead, every few crossbeams 201 will have one with a horizontal connecting frame 205. The horizontal connecting frame 205 is rotatably connected to the flip hinge frame 503 through the hinge shaft 6.

[0031] The hydraulic cylinder 4 can change the tilt angle of the flip door 5 by adjusting the height of the escalator 2. The flip door 5 has two limit angles: horizontal and vertical. Specifically, a horizontal fixed shaft 105 is fixedly connected between the two inner side walls of the inspection window 103. The fixed shaft 105 is close to the bottom of the inspection window 103. The flip door 5 has a shaft hole 502 that passes through the opposite side near the lower edge, which is just enough for the fixed shaft 105 to pass through to form a rotating pair to restrict the degree of freedom of movement of the flip door 5. Furthermore, the side of the flip door 5 is parallel to the inner wall of the inspection window 103 and the distance is very small, so the flip door 5 will hardly move along the axis of the fixed shaft 105. When the outer side of the flip door 5 is in contact with the inner bottom surface of the inspection window 103, the flip door 5 is in the horizontal limit position.

[0032] The inner wall of the inspection window 103 also has a limiting frame 104. The limiting frame 104 is located at one end of the inspection window 103 near the interior of the tower body 1. The vertical plane of the limiting frame 104 is parallel to the axis of the tower body 1. The end face of the limiting frame 104 facing the axis of the tower body 1 is flush with the inner wall of the tower body 1. When the inner side of the flip door 5 is in contact with the outer end face of the limiting frame 104, the flip door 5 is in the vertical limit position. The inner side of the flip door 5 is also fixedly connected with an embedded sealing plate 501. When the flip door 5 is in the vertical state, it is embedded in the limiting frame 104 to seal the gap formed by the limiting frame 104 in the inner wall of the tower body 1. The inner side of the flip door 5 is provided with a sealing ring around the embedded sealing plate 501, which is pressed against the outer end face of the limiting frame 104 to form a sealing surface to prevent the gas or liquid phase components from overflowing during the distillation process.

[0033] Working principle: Under normal conditions, hydraulic cylinder 4 is in the extended state, ladder 2 is vertical, which forces all the tilting doors 5 to also be in the vertical direction. Since the tilting doors 5 are tightly pressed against the end face of the limit frame 104, the tower body 1 is in a relatively sealed state, and the gaseous or liquid substances generated during the distillation process will not overflow. When the distillation tower is finished and needs to be shut down for maintenance, hydraulic cylinder 4 retracts, ladder 2 descends, and all the tilting doors 5 are deflected away from the limit frame 104 until the tilting doors 5 contact the inner bottom surface of the maintenance window 103 and reach the horizontal direction. At this time, the lower ladder 2 makes it easier for workers to climb up. When the workers reach the height of the tilting doors 5, they can lie on the horizontal tilting doors 5 and put their head and upper body into the tower body 1 for inspection and maintenance. Since the maintenance workers can lie or lie on the tilting doors 5, the maintenance operation is relatively easy, and they can also easily enter or leave the tower body 1 through the tilting doors 5.

[0034] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A column structure for an ultra-large distillation column, characterized in that: The system includes a base (7), on which a tower body (1) is fixedly connected. A gas phase discharge end (101) is provided at the top of the tower body (1), and a liquid phase discharge end (102) is provided at the bottom of the tower body (1). An inspection window (103) is provided on the side wall of the tower body (1). A flip door (5) is rotatably connected inside the inspection window (103). A hydraulic cylinder (4) is also connected to the base (7). A ladder (2) is rotatably connected to the upper end of the hydraulic cylinder (4). The ladder (2) is rotatably connected to the flip door (5). The hydraulic cylinder (4) is adapted to change the tilt angle of the flip door (5) through the ladder (2).

2. The column structure of the ultra-large distillation column as described in claim 1, characterized in that: The flip door (5) has two extreme angles, horizontal and vertical. A fixed shaft (105) is fixedly connected between the two inner side walls of the inspection window (103). The fixed shaft (105) is close to the bottom of the inspection window (103). The flip door (5) has a shaft hole (502) that passes through the opposite side, which is suitable for the fixed shaft (105) to pass through to form a rotating pair. The outer side of the flip door (5) is suitable to fit with the inner bottom surface of the inspection window (103). The inner wall of the inspection window (103) also has a limiting frame (104). The plane of the limiting frame (104) is parallel to the axis of the tower body (1). The inner side of the flip door (5) is suitable to fit with the outer end face of the limiting frame (104).

3. The column structure of the ultra-large distillation column as described in claim 2, characterized in that: The inner side of the flip door (5) is also fixedly connected to an embedded sealing plate (501), which is suitable for embedding in the limiting frame (104).

4. The column structure of the ultra-large distillation column as described in claim 3, characterized in that: The inner side of the flip door (5) is provided with a sealing ring surrounding the embedded sealing plate (501), which is suitable for pressing against the outer end face of the limiting frame (104).

5. The column structure of the ultra-large distillation column as described in claim 4, characterized in that: The tower body (1) is fixedly connected to the base (7) by a bracket (3). There are several brackets (3), which are arranged at equal intervals around the axis of the tower body (1).

6. The column structure of the ultra-large distillation column as described in any one of claims 2 to 5, characterized in that: The escalator (2) includes a pair of parallel longitudinal beams (202), and a crossbeam (201) is fixedly connected between the longitudinal beams (202). There are several crossbeams (201) arranged parallel to each other at equal intervals. The flip door (5) is rotatably connected to the crossbeam (201).

7. The column structure of the ultra-large distillation column as described in claim 6, characterized in that: The outer side of the flip door (5) has a flip hinge frame (503), and the side of the crossbeam (201) has a horizontal connecting frame (205). The horizontal connecting frame (205) is rotatably connected to the flip hinge frame (503) through a hinge shaft (6). The lower ends of the two longitudinal beams (202) are fixedly connected to a traction plate (203). The bottom surface of the traction plate (203) has a lower hinge frame (204), which is also rotatably connected to the movable end of the telescopic rod of the hydraulic cylinder (4) through a hinge shaft (6).

8. The column structure of the ultra-large distillation column as described in claim 7, characterized in that: There are several combinations of the maintenance window (103) and the flip door (5), and the maintenance window (103) and the flip door (5) are arranged at equal intervals along the height direction of the tower body (1).

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