Crude vinyl chloride rectifying tower

Abstract

The utility model relates to the technical field of rectifying towers, and discloses a crude vinyl chloride rectifying tower which comprises a rectifying tower body and a mounting plate fixed in the rectifying tower body, and further comprises a tower plate sliding on the inner wall of the rectifying tower body, a sliding groove is formed in the surface of the tower plate, and a mounting shell is fixedly connected to the bottom of the tower plate. A threaded rod is arranged in an inner cavity of the mounting shell; the sleeve is in threaded connection with the surface of the threaded rod; according to the utility model, under the matching of the threaded rod and the sleeve, the movable rod can be matched with the movable rod to enable the positioning mechanism to limit the tower plate, so that the tower plate is limited in four directions, the tower plate is prevented from easily moving, the tower plate of the rectifying tower is more convenient to disassemble and assemble, and the working efficiency of the rectifying tower is improved. And moreover, the disassembling and assembling efficiency of the rectifying tower on the tower plates is effectively improved, the applicability of the rectifying tower is further improved, and the problems that an existing rectifying tower is not convenient to disassemble and assemble and poor in applicability during use are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation towers, in particular to a crude vinyl chloride distillation tower. Background Art

[0002] A distillation tower is a tower-type vapor-liquid contact device that performs distillation. By utilizing the different volatilities of the components in a mixture—that is, the different vapor pressures of the components at the same temperature—they transfer the light components (low-boiling substances) from the liquid phase into the vapor phase, while the heavy components (high-boiling substances) from the vapor phase transfer into the liquid phase, thereby achieving separation. Distillation towers are also a widely used mass and heat transfer device in petrochemical production.

[0003] Crude vinyl chloride generally refers to an unrefined or impure mixture containing vinyl chloride. This mixture may originate from the vinyl chloride production process and may contain incompletely reacted raw materials, by-products, catalyst residues, and other possible impurities. Trichloroethylene and tetrachloroethylene, on the other hand, are pure compounds obtained from vinyl chloride after specific processing.

[0004] After searching, it was found that a Chinese patent document discloses a distillation tower for separating trichloroethylene and tetrachloroethylene [Application No.: CN202123291501.4]. This distillation tower for separating trichloroethylene and tetrachloroethylene includes an upper tower body and a lower tower body. A plurality of tower plates arranged at intervals are installed longitudinally inside the upper tower body. A tower plate weir is provided on one side of the tower plate. The tower plates are installed by fixed slides and wedge blocks. The tower plates can slide longitudinally along the fixed slides, and the bottom of the tower plates is supported by the wedge blocks. Sliding holes are opened on the edges of the tower plates away from the tower plate weirs. The tower plates are slidably connected to the fixed slides through the sliding holes. The fixed slides are fixedly connected to the inner wall of the upper tower body in the vertical direction. The fixed slides are provided with a plurality of adjustment holes arranged at equal intervals. The wedge blocks are provided with two fixing holes arranged vertically and the wedge blocks are installed on the side of the fixed slides away from the tower wall of the upper tower body by fixing bolts.

[0005] When the distillation tower disclosed in this patent is in use, the position of the tower plate is adjusted by the cooperation of bolts, and the tower plate is limited by bolts in four directions at the same time, which makes it more complicated to adjust the position of the tower plate of the distillation tower, which not only affects the adjustment efficiency of the tower plate, but also reduces the applicability of the distillation tower. Utility Model Content

[0006] The purpose of the utility model is to provide a crude vinyl chloride distillation tower to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a crude vinyl chloride distillation tower, comprising a distillation tower body and a mounting plate fixed therein, and further comprising:

[0008] A tower plate slides on the inner wall of the distillation tower body, wherein a sliding groove is provided on the surface of the tower plate, and a mounting shell is fixedly connected to the bottom of the tower plate, wherein a threaded rod is provided in the inner cavity of the mounting shell;

[0009] A sleeve is threadedly connected to the surface of the threaded rod, a movable rod is hinged on the surface of the sleeve, the other end of the movable rod is hinged to a moving rod, and a positioning mechanism is installed on the other end of the moving rod.

[0010] Preferably, the positioning mechanism includes a connecting plate fixed to one end of the moving rod and positioning rods fixed to two locations on one side thereof, and a positioning groove is provided on the surface of the mounting plate.

[0011] Preferably, the top of the threaded rod is fixedly connected to a bearing seat, and the other side of the bearing seat is fixedly connected to the bottom of the tower plate.

[0012] Preferably, the bottom of the threaded rod is fixedly connected to a rotating seat, and the surface of the rotating seat is rotatably connected to the inner wall of the mounting shell.

[0013] Preferably, a support seat is fixedly connected to the inner wall of the mounting shell, and the inner wall of the support seat is slidably connected to the surface of the moving rod.

[0014] Preferably, the surface of the positioning rod is slidably connected to the inner wall of the positioning groove, and there are several positioning grooves.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model discloses a tower plate that is convenient to disassemble and assemble, and the tower plate of the tower plate of the present invention is convenient to disassemble and assemble, and the utility model solves the problem that the existing tower plate is not convenient to disassemble and assemble, and has poor applicability when being used. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present utility model;

[0018] Figure 2 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present utility model;

[0019] Figure 3 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present utility model;

[0020] Figure 4 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present utility model;

[0021] Figure 5 It is a schematic diagram of a partial three-dimensional structure from another perspective of the present invention.

[0022] In the figure: 1. Distillation tower body; 2. Mounting plate; 3. Tower plate; 4. Sliding groove; 5. Mounting shell; 6. Threaded rod; 7. Sleeve; 8. Movable rod; 9. Moving rod; 10. Positioning mechanism; 101. Connecting plate; 102. Positioning rod; 103. Positioning groove; 11. Bearing seat; 12. Rotating seat; 13. Support seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5As shown, a crude vinyl chloride distillation tower includes a distillation tower body 1. The distillation tower body 1 can separate the mixture by utilizing the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature. The interior of the distillation tower body 1 is fixedly connected with a mounting plate 2, and the number of the mounting plates 2 is four. The inner wall of the distillation tower body 1 is slidably connected with a tower plate 3, and the surface of the tower plate 3 is provided with a sliding groove 4. The inner wall of the sliding groove 4 is slidably connected to the surface of the mounting plate 2. Under this effect, the position of the tower plate 3 can be more accurately installed through the cooperation of the mounting plate 2 and the sliding groove 4, which effectively facilitates the work. The operator installs the tower plate 3. The bottom of the tower plate 3 is fixedly connected to the installation shell 5. The inner cavity of the installation shell 5 is provided with a threaded rod 6. The surface of the threaded rod 6 is threadedly connected to the sleeve 7. The surface of the sleeve 7 is hinged with a movable rod 8. The other end of the movable rod 8 is hinged with a moving rod 9. The other end of the moving rod 9 is installed with a positioning mechanism 10. The positioning mechanism 10 is used in conjunction with the mounting plate 2. Under this action, when the tower plate 3 needs to be fixed, the threaded rod 6 can be rotated to drive the sleeve 7 to move under the action of the surface thread. When the sleeve 7 moves, the positioning mechanism 10 and the mounting plate 2 are mutually engaged through the cooperation of the movable rod 8 and the moving rod 9. The connection is made so as to limit the tower plate 3, which is not only more convenient and effectively improves the efficiency of the distillation tower in disassembling and assembling the tower plate 3, but also improves the applicability of the distillation tower. The bottom of the threaded rod 6 is fixedly connected with a rotating seat 12, and the surface of the rotating seat 12 is rotatably connected to the inner wall of the mounting shell 5. Under this action, the cooperation of the rotating seat 12 can make it more convenient for the staff to rotate the threaded rod 6 when it is needed, and provide an effective force point for the staff to rotate the threaded rod 6, thereby facilitating the rotation of the threaded rod 6. The top of the threaded rod 6 is fixedly connected with a bearing seat 11, and the other side of the bearing seat 11 is connected to the bottom of the tower plate 3. Fixed connection, under this action, the upper part of the threaded rod 6 can be limited by the cooperation of the bearing seat 11, so that the threaded rod 6 can be more stable when rotating, avoiding the threaded rod 6 being unstable when rotating and affecting the threaded connection with the sleeve 7, the inner wall of the mounting shell 5 is fixedly connected with a support seat 13, and the inner wall of the support seat 13 is slidingly connected to the surface of the moving rod 9. Under this action, the moving rod 9 can be guided when moving under the action of the support seat 13, so that the moving rod 9 can be more stable when moving, avoiding the moving rod 9 being unstable when moving and affecting the connection between the positioning mechanism 10 and the mounting plate 2.

[0025] The positioning mechanism 10 includes a connecting plate 101, one side of the connecting plate 101 is fixedly connected to one end of the moving rod 9, and two positioning rods 102 are fixedly connected to one side of the connecting plate 101. A positioning groove 103 is provided on the surface of the mounting plate 2, and the surface of the positioning rod 102 is slidably connected to the inner wall of the positioning groove 103. There are several positioning grooves 103. Under this action, the positioning rod 102 can be driven to move by the connecting plate 101 when the moving rod 9 moves, so that the positioning rod 102 can be embedded in the interior of the positioning groove 103 to limit the four directions of the tower plate 3. It is not only more convenient, but also effectively improves the fixing efficiency of the tower plate 3. Moreover, the two positioning rods 102 are embedded in the interior of the positioning groove 103 at the same time, which can further improve the limiting effect of the tower plate 3.

[0026] It is worth noting that the technical features such as the distillation tower body 1 proposed in this technical solution should be regarded as the technology in the comparative case. The specific structure, working principle, and possible control method and spatial layout method of these technical features can be selected according to the conventional methods in the field, and this technical solution will not be further elaborated.

[0027] Working principle: First, when the position of the tower plate 3 needs to be adjusted, the staff rotates the threaded rod 6, and under the action of the threaded rod 6, the sleeve 7 drives the movable rod 8 to move, so that the movable rod 8 can tilt and pull the movable rod 9 to move, so that the connecting plate 101 can drive the positioning rod 102 to disengage from the inside of the positioning groove 103, thereby releasing the limit on the tower plate 3, and then moving the tower plate 3 to a suitable position. Then the staff rotates the threaded rod 6 in the opposite direction so that it can cooperate with the sleeve 7 and the movable rod 8 to allow the movable rod 9 to drive the connecting plate 101 and the positioning rod 102 to move, and then embed the positioning rod 102 into the inside of the positioning groove 103, thereby limiting the tower plate 3. This is not only convenient for disassembling and assembling the tower plate 3, but also effectively improves the applicability of the distillation tower.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crude vinyl chloride distillation tower, comprising a distillation tower body (1) and a mounting plate (2) fixed therein, characterized in that: Also includes: A tower plate (3) slides on the inner wall of the distillation tower body (1), a sliding groove (4) is provided on the surface of the tower plate (3), a mounting shell (5) is fixedly connected to the bottom of the tower plate (3), and a threaded rod (6) is provided in the inner cavity of the mounting shell (5); A sleeve (7) is threadedly connected to the surface of the threaded rod (6); a movable rod (8) is hingedly connected to the surface of the sleeve (7); the other end of the movable rod (8) is hingedly connected to a moving rod (9); and a positioning mechanism (10) is installed at the other end of the moving rod (9).

2. A crude vinyl chloride distillation tower according to claim 1, characterized in that: The positioning mechanism (10) comprises a connecting plate (101) fixed to one end of the moving rod (9) and positioning rods (102) fixed to two locations on one side thereof. A positioning groove (103) is provided on the surface of the mounting plate (2).

3. A crude vinyl chloride distillation tower according to claim 1, characterized in that: The top of the threaded rod (6) is fixedly connected to a bearing seat (11), and the other side of the bearing seat (11) is fixedly connected to the bottom of the tower plate (3).

4. A crude vinyl chloride distillation tower according to claim 1, characterized in that: The bottom of the threaded rod (6) is fixedly connected to a rotating seat (12), and the surface of the rotating seat (12) is rotatably connected to the inner wall of the mounting shell (5).

5. The crude vinyl chloride distillation tower according to claim 1, characterized in that: The inner wall of the mounting shell (5) is fixedly connected to a support seat (13), and the inner wall of the support seat (13) is slidably connected to the surface of the moving rod (9).

6. A crude vinyl chloride distillation tower according to claim 2, characterized in that: The surface of the positioning rod (102) is slidably connected to the inner wall of the positioning groove (103), and there are a plurality of positioning grooves (103).

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