PTA low-pressure absorption tower

Abstract

The utility model relates to the technical field of absorption towers, and discloses a PTA (pure terephthalic acid) low-pressure absorption tower which comprises a tower body, two inlet baffles I are arranged at the bottom of the inner wall of one side of the tower body, a plurality of baffle tower trays are arranged in the tower body, an inlet baffle II is arranged at the top of the inner wall of one side of the tower body, and a distribution pipe is arranged at the top of the other side of the tower body. A demister is arranged at the top of the tower body through a fixed supporting piece group II; according to the utility model, the baffle tray is mounted in the tower body through the fixed supporting piece group I, the demister is mounted in the tower body through the fixed supporting piece group II, and the distribution pipe is mounted in the tower body through the fixed supporting piece group III, so that the components such as the baffle tray, the demister and the distribution pipe are arranged into detachable structures, and are convenient to quickly disassemble and assemble; and timely replacement can be performed when damage occurs, so that the subsequent production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of absorption tower, specifically a PTA low pressure absorption tower. BACKGROUND

[0002] Low pressure absorption tower is a kind of equipment to realize absorption operation, it is constituted by filler, tower internals and cylinder;Tower internal gas-liquid two-phase flow mode can be countercurrent also can be parallel flow, usually countercurrent operation is adopted, i. e. absorbent is added from tower top and flows from top to bottom, and is contacted with gas flowing from bottom to top, liquid absorbed with absorbent is discharged from tower bottom, and purified gas is discharged from tower top;

[0003] Through the search, it is found that the tray, demister and other components in the existing low pressure absorption tower are fixedly installed in the tower body in advance, when the tray, demister and other components are damaged and need to be replaced, it is not convenient to disassemble and assemble, which affects the subsequent work efficiency. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a PTA low pressure absorption tower, which has the effect of facilitating the quick disassembly and assembly of components in the low pressure absorption tower.

[0005] The above technical purpose of the utility model is realized by the following technical scheme: a PTA low pressure absorption tower, comprising a tower body, two inlet baffles one are arranged on the bottom of the inner wall of one side of the tower body, a plurality of baffle trays are arranged in the tower body, the gas outlet directions of adjacent baffle trays are staggered, the baffle trays are connected with the inner wall of the tower body through a fixed support group one, the baffle trays are assembled by a plurality of trays, beams and longitudinal beams are arranged on the top of the trays, the trays are connected with the beams and longitudinal beams through fasteners two, an inlet baffle two is arranged on the top of the inner wall of one side of the tower body, a distribution pipe is arranged on the top of the other side of the tower body, and a demister is arranged on the top of the tower body through a fixed support group two.

[0006] The utility model is further provided as follows: the inlet baffle one comprises a bottom plate one and a vertical plate one, the two bottom plate ones are fixedly connected with the inner wall of one side of the tower body, and the vertical plate one is fixedly arranged on the surface of the bottom plate one.

[0007] The utility model is further provided as follows: the fixed support group one comprises a support ring, the support ring is welded with the inner wall of the tower body, the support ring is connected with the baffle tray through fasteners one, the inner side of the support ring is welded with a connecting plate one, the end of the support ring is welded with a connecting plate two, the connecting plate one and the connecting plate two are connected with the baffle tray through fasteners three, and the longitudinal beam is connected with the support ring through fasteners four.

[0008] The further setting of the utility model is that the defoaming device is provided with a support beam welded at the top and bottom of the net block one, the net block two, the net block three, the net block four and the net block five, and two pressing plates are welded at the top and bottom of the net block one, the net block two, the net block three, the net block four and the net block five, the pressing plates are located at the two sides of the support beam, a sealing plate is arranged below the defoaming device, and the sealing plate is connected with the bottom of the defoaming device through the fastener six.

[0009] The further setting of the utility model is that the fixed support group two comprises a support ring one and a support ring two, the support ring one is arranged above the defoaming device, the support ring two is arranged below the defoaming device, a support plate one is welded at the top of the support ring one and the bottom of the support ring two, and the support plate one is connected with the pressing plate through the fastener five.

[0010] The further setting of the utility model is that the distribution pipe comprises a connecting pipe one and a connecting pipe two, one end of the connecting pipe one is welded with the middle part of the connecting pipe two, and the two are communicated with each other, the other end of the connecting pipe one is provided with a graphite pad, and the distribution pipe is connected with the inner wall of the tower body through the fixed support group three.

[0011] The further setting of the utility model is that the fixed support group three comprises a support plate two and a mounting flange, the support plate two is provided with two and is symmetrically arranged, the support plate two is welded with the inner wall of the tower body, the support plate two is connected with the connecting pipe two through the fastener seven, and the mounting flange is arranged at the top of one side of the tower body and connected with the end of the connecting pipe one.

[0012] In conclusion, the utility model has the advantages that the baffle tray is installed to the inside of the tower body through the fixed support group one, the defoaming device is installed to the inside of the tower body through the fixed support group two, and the distribution pipe is installed to the inside of the tower body through the fixed support group three, so that the baffle tray, the defoaming device and the distribution pipe are provided as a detachable structure, which is convenient for quick disassembly and replacement in case of damage, thereby improving the subsequent production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of the utility model;

[0014] Figure 2 It is a main opening direction structural schematic view of the tower body of the utility model;

[0015] Figure 3 It is one of the installation structural schematic views of the baffle tray of the utility model;

[0016] Figure 4 It is the second installation structural schematic view of the baffle tray of the utility model;

[0017] Figure 5 Figure 1 is a schematic view of the installation structure of the fixed support part group one of the present application;

[0018] Figure 6 Figure 2 is another schematic view of the installation structure of the fixed support part group one of the present application;

[0019] Figure 7 Figure 3 is a schematic view of the installation structure of the defoamer of the present application;

[0020] Figure 8 Figure 4 is another schematic view of the installation structure of the defoamer of the present application;

[0021] Figure 9 Figure 5 is a schematic view of the installation structure of the fixed support part group two of the present application;

[0022] Figure 10 Figure 6 is another schematic view of the installation structure of the fixed support part group two of the present application;

[0023] Figure 11 Figure 7 is a schematic view of the installation structure of the distribution pipe of the present application;

[0024] Figure 12 Figure 8 is a schematic view of the installation structure of the fixed support part group three of the present application;

[0025] Figure 13 Figure 9 is a schematic view of the installation structure of the inlet baffle one of the present application;

[0026] Figure 14 Figure 10 is a schematic view of the installation structure of the inlet baffle two of the present application;

[0027] Figure 15 Figure 11 is a schematic view of the structure of the fastener one of the present application;

[0028] Figure 16 Figure 12 is a schematic view of the structure of the fastener two of the present application;

[0029] Figure 17 Figure 13 is a schematic view of the structure of the fastener three of the present application;

[0030] Figure 18 Figure 14 is a schematic view of the structure of the fastener four of the present application;

[0031] Figure 19 Figure 15 is a schematic view of the structure of the fastener five of the present application;

[0032] Figure 20 Figure 16 is a schematic view of the structure of the fastener six of the present application;

[0033] Figure 21 Figure 17 is a schematic view of the structure of the fastener seven of the present application;

[0034] Figure 22 Figure 8 is a structural schematic diagram of the fastener eight of the utility model.

[0035] In the figure: 1, tower body; 2, inlet baffle one; 201, bottom plate one; 202, vertical plate one; 3, baffle tray; 301, fixed support group one; 30101, support ring; 30102, connecting plate one; 30103, connecting plate two; 302, fastener one; 303, fastener two; 304, fastener three; 305, fastener four; 4, demister; 401, mesh block one; 402, mesh block two; 403, mesh block three; 404, mesh block four; 405, mesh block five; 406, support beam; 407, pressing plate; 408, fastener five; 409, sealing plate; 4010, fastener six; 4011, fixed support group two; 401101, support ring one; 401102, support ring two; 401103, support plate one; 5, inlet baffle two; 501, bottom plate two; 502, vertical plate two; 6, distribution pipe; 601, connecting pipe one; 602, connecting pipe two; 603, graphite pad; 604, fixed support group three; 60401, support plate two; 60402, mounting flange; 60403, fastener seven; 60404, fastener eight. DETAILED DESCRIPTION

[0036] The utility model will be further explained in combination with the drawings in the embodiments of the utility model.

[0037] Please refer to Figures 1-22 In the embodiments of the utility model, a PTA low-pressure absorption tower comprises a tower body 1, two inlet baffles one 2 are arranged at the bottom of the inner wall of one side of the tower body 1 and correspond to the positions of N7 and N8 inlet pipes, a plurality of baffle trays 3 are arranged in the tower body 1, the gas outlet directions of adjacent baffle trays 3 are staggered, the baffle trays 3 are connected with the inner wall of the tower body 1 through a fixed support group one 301, the baffle trays 3 can be quickly disassembled and assembled, the baffle trays 3 are assembled by a plurality of trays, cross beams and longitudinal beams are arranged at the top of the trays, the trays are connected with the cross beams and longitudinal beams through fastener two 303, an inlet baffle two 5 is arranged at the top of the inner wall of one side of the tower body 1 and corresponds to the position of N2 inlet pipe, a distribution pipe 6 is arranged at the top of the other side of the tower body 1 and corresponds to the position of N3 inlet pipe, a demister 4 is arranged at the top of the tower body 1 through a fixed support group two 4011, and the demister 4 is connected with the side wall of the tower body 1 through the fixed support group two 4011.

[0038] In the embodiments, preferably, the inlet baffle one 2 comprises a bottom plate one 201 and a vertical plate one 202, two bottom plate ones 201 are fixedly connected with the inner wall of one side of the tower body 1, the vertical plate one 202 is fixedly arranged on the surface of the bottom plate one 201, and the vertical plate one 202 corresponds to the positions of N7 and N8 inlet pipes and blocks the entering gas.

[0039] In the embodiment, preferably, the first fixed support group 301 comprises a support ring 30101 welded to the inner wall of the tower body 1, the support ring 30101 is connected with the baffle tray 3 through fasteners 302, the inner side of the support ring 30101 is welded with a first connecting plate 30102, the end of the support ring 30101 is welded with a second connecting plate 30103, the first connecting plate 30102 and the second connecting plate 30103 are connected with the baffle tray 3 through fasteners 304, and the longitudinal beam is connected with the support ring 30101 through fasteners 305. The position of the baffle tray 3 can be fixed by using the first fixed support group 301, and the baffle tray 3 is convenient to disassemble and assemble;

[0040] In the embodiment, preferably, the demister 4 comprises a mesh block one 401, a mesh block two 402, a mesh block three 403, a mesh block four 404 and a mesh block five 405, and the mesh block one 401, the mesh block two 402, the mesh block three 403, the mesh block four 404 and the mesh block five 405 are provided with two and symmetrically arranged, the top end and the bottom end of the mesh block one 401, the mesh block two 402, the mesh block three 403, the mesh block four 404 and the mesh block five 405 are welded with a support beam 406, so that the mesh block one 401, the mesh block two 402, the mesh block three 403, the mesh block four 404 and the mesh block five 405 are assembled together, and the top end and the bottom end of the mesh block one 401, the mesh block two 402, the mesh block three 403, the mesh block four 404 and the mesh block five 405 are welded with two pressing plates 407, and the pressing plates 407 are located on both sides of the support beam 406, and the demister 4 is provided with a sealing plate 409 below, and the sealing plate 409 is connected with the bottom of the demister 4 through fasteners 4010. The demister 4 can separate liquid droplets entrained in gas;

[0041] In the embodiment, preferably, the second fixed support group 4011 comprises a support ring one 401101 and a support ring two 401102, the support ring one 401101 is arranged above the demister 4, the support ring two 401102 is arranged below the demister 4, the top end of the support ring one 401101 and the bottom end of the support ring two 401102 are welded with a support plate one 401103, and the support plate one 401103 is connected with the pressing plate 407 through fasteners 408, so as to limit the position of the demister 4, and the demister 4 is convenient to disassemble and assemble;

[0042] In the embodiment, preferably, the distribution pipe 6 comprises a connecting pipe one 601 and a connecting pipe two 602, one end of the connecting pipe one 601 is welded with the middle part of the connecting pipe two 602, and both of them are communicated with each other, the surface of the connecting pipe two 602 is provided with distribution holes, the other end of the connecting pipe one 601 is provided with a graphite pad 603 with good sealing performance and thermal conductivity, the distribution pipe 6 is connected with the inner wall of the tower body 1 through the fixed support group three 604, which is convenient for limiting the position of the distribution pipe 6 and convenient for dismounting;

[0043] In the embodiment, preferably, the fixed support group three 604 comprises a support plate two 60401 and a mounting flange 60402, two support plate twos 60401 are provided and symmetrically arranged, the support plate two 60401 is welded with the inner wall of the tower body 1, the support plate two 60401 is connected with the connecting pipe two 602 through the fastener seven 60403, the mounting flange 60402 is arranged at the top of one side of the tower body 1 and connected with the end of the connecting pipe one 601, the mounting flange 60402 corresponds to the position of the N3 inlet pipe, and the connecting pipe one 601 is connected with the N3 inlet pipe through the mounting flange 60402, which is convenient for limiting the position of the distribution pipe 6, so that the distribution pipe 6 can be quickly dismounted and mounted;

[0044] It should be noted that the fixed nuts of the fastener two 303, the fastener four 305 and the fastener six 4010 at the lowermost part are all spot-welded on the parts in advance.

[0045] In use, first, the inlet baffle one 2 and the inlet baffle two 5 are welded on the inner wall of the tower body 1, the inlet baffle one 2 corresponds to the position of the N7, N8 inlet pipe, the inlet baffle two 5 corresponds to the position of the N3 inlet pipe, then the plurality of trays are assembled together to form the baffle tray 3 through the cross beam and the longitudinal beam cooperating with the fastener two 303, the assembled baffle tray 3 is connected with the support ring 30101 by using the fastener one 302, the fastener three 304 and the fastener five 305, then the support ring 30101 is welded to the inner side of the tower body 1, the outlets of the adjacent baffle trays 3 are staggered, the distribution pipe 6 is connected with the support plate two 60401 and the mounting flange 60402 through the fastener seven 60403 and the fastener eight 60404, finally, the top and bottom ends of the mesh block one 401, the mesh block two 402, the mesh block three 403, the mesh block four 404 and the mesh block five 405 are welded with the support beam 406, the mesh block one 401, the mesh block two 402, the mesh block three 403, the mesh block four 404 and the mesh block five 405 are assembled together, the top and bottom ends of the mesh block one 401, the mesh block two 402, the mesh block three 403, the mesh block four 404 and the mesh block five 405 are welded with two pressing plates 407, the defoamer 4 is assembled, the support ring one 401101 and the support ring 401102 are installed above and below the defoamer 4 and are installed on the top of the tower body 1, and the assembly of the low-pressure absorption tower is completed.

[0046] The above only describes preferred embodiments of the present application, and equivalent changes or modifications made according to the structure, features and principles described in the patent application range of the present application are included in the patent application range of the present application.

Claims

1. A PTA low pressure absorber column comprising a column body (1), characterized in that, The bottom of the inner wall of one side of the tower body (1) is provided with two inlet baffles (2), the inside of the tower body (1) is provided with a plurality of baffle trays (3), the gas outlet directions of adjacent baffle trays (3) are staggered, the baffle trays (3) are connected with the inner wall of the tower body (1) through a fixed support group (301), the baffle trays (3) are assembled by a plurality of trays, the top end of the tray is provided with a cross beam and a longitudinal beam, the tray is connected with the cross beam and the longitudinal beam through a fastener (303), the top of the inner wall of one side of the tower body (1) is provided with an inlet baffle (5), the top of the other side of the tower body (1) is provided with a distribution pipe (6), and the top of the tower body (1) is provided with a demister (4) through a fixed support group (4011).

2. The PTA low pressure absorber column of claim 1, characterized by: The inlet baffle (2) comprises a bottom plate (201) and a vertical plate (202), and the two bottom plates (201) are fixedly connected with the inner wall of one side of the tower body (1).

3. The PTA low pressure absorber column of claim 1, characterized by: The fixed support group (301) comprises a support ring (30101), the support ring (30101) is welded with the inner wall of the tower body (1), the support ring (30101) is connected with the baffle tray (3) through a fastener (302), the inner side of the support ring (30101) is welded with a connecting plate (30102), the end of the support ring (30101) is welded with a connecting plate (30103), the connecting plate (30102) and the connecting plate (30103) are connected with the baffle tray (3) through a fastener (304), and the longitudinal beam is connected with the support ring (30101) through a fastener (305).

4. The PTA low pressure absorber column of claim 1, characterized by: The demister (4) comprises a mesh block (401), a mesh block (402), a mesh block (403), a mesh block (404) and a mesh block (405), the top end and the bottom end of the mesh block (401), the mesh block (402), the mesh block (403), the mesh block (404) and the mesh block (405) are welded with a support beam (406), the top end and the bottom end of the mesh block (401), the mesh block (402), the mesh block (403), the mesh block (404) and the mesh block (405) are welded with two pressing plates (407), the pressing plates (407) are located on both sides of the support beam (406), the lower side of the demister (4) is provided with a sealing plate (409), and the sealing plate (409) is connected with the bottom of the demister (4) through a fastener (4010).

5. The PTA low pressure absorber column of claim 4, characterized by: The fixed support group (4011) comprises a support ring (401101) and a support ring (401102), the support ring (401101) is arranged above the demister (4), the support ring (401102) is arranged below the demister (4), the top end of the support ring (401101) and the bottom end of the support ring (401102) are welded with a support plate (401103), and the support plate (401103) is connected with the pressing plate (407) through a fastener (408).

6. The PTA low pressure absorber column of claim 1, characterized by: The distribution pipe (6) comprises a connecting pipe one (601) and a connecting pipe two (602), one end of the connecting pipe one (601) is welded with the middle part of the connecting pipe two (602), and both are communicated with each other, the other end of the connecting pipe one (601) is provided with a graphite pad (603), the distribution pipe (6) is connected with the inner wall of the tower body (1) through the fixed support group three (604).

7. The PTA low pressure absorber column of claim 6, characterized by: The fixed support group three (604) comprises a support plate two (60401) and a mounting flange (60402), the support plate two (60401) is provided with two and is symmetrically arranged, the support plate two (60401) is welded with the inner wall of the tower body (1), the support plate two (60401) is connected with the connecting pipe two (602) through the fastener seven (60403), the mounting flange (60402) is arranged at the top of one side of the tower body (1) and connected with the end of the connecting pipe one (601).

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