Reboiler of methyl ester synthesis tower

Abstract

The utility model discloses a methyl ester synthesis tower reboiler which comprises a heat exchange cylinder, fixing plates are fixedly connected to the positions, close to the upper end and the lower end, of the inner surface of the heat exchange cylinder, a plurality of communicating sleeves are fixedly communicated between the two fixing plates, heat conduction pipes are inserted into the communicating sleeves, a dismounting plate is inserted into the heat exchange cylinder, and the dismounting plate is fixedly connected with the heat exchange cylinder. The bottom ends of the multiple dismounting plates fixedly communicate with the top ends of the multiple heat conduction pipes. After the upper cover and the lower cover are detached, the pressing ring relieves limitation on the detaching plate, then the detaching plate is pulled to drive the heat conduction pipe in the communicating sleeve to be pulled out of the heat exchange barrel, a new heat conduction pipe is replaced for continuous use, the replaced heat conduction pipe is independently cleaned, and rapid replacement of the heat exchange barrel is achieved; the time for cleaning the heat exchange cylinder is greatly shortened, and the production efficiency is indirectly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a methyl ester synthesis tower reboiler. Background Art

[0002] Methyl ester is a general term for a class of compounds with the general formula of R-COOCH3, where R can be a hydrocarbon group or a hydrogen atom. This type of compound is mainly produced by the esterification reaction of carboxylic acid (or oxygen-containing acid) with methanol and dehydration. In the synthesis process of methyl ester, a reboiler is usually required for purification, separation and refining.

[0003] At present, the heat transfer tubes of most reboilers will gradually become clogged during use, which requires the staff to disassemble the heat exchange cylinder of the reboiler and clean it separately. During the cleaning process, the reboiler cannot be used any longer. In addition, since the cleaning is relatively cumbersome, the manufacturer needs to configure two reboilers to work in rotation, which increases economic expenditure. Summary of the invention

[0004] The utility model aims to provide a methyl ester synthesis tower reboiler to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a methyl ester synthesis tower reboiler comprises a heat exchange cylinder, a fixed plate is fixedly connected to the inner surface of the heat exchange cylinder near the upper and lower ends, a plurality of connecting sleeves are fixedly connected between the two fixed plates, a heat conducting pipe is inserted inside the plurality of connecting sleeves, a disassembly plate is inserted inside the heat exchange cylinder, and the bottom ends of the plurality of disassembly plates are fixedly connected to the top ends of the plurality of heat conducting pipes.

[0006] As a further preferred embodiment of the present technical solution, an upper cover is fixedly provided on the top of the heat exchange cylinder, a clamping ring is fixedly connected to the inner surface of the upper cover, the bottom end of the clamping ring is in close contact with the top of the disassembly plate, and the outer surface of the upper cover is fixedly connected to a pipe inlet.

[0007] As a further preferred embodiment of the technical solution, a lower cover is fixedly provided at the bottom end of the heat exchange cylinder, and the bottom end of the lower cover is fixedly connected to a pipe-side outlet.

[0008] As a further preferred embodiment of the present technical solution, the outer surface of the heat exchange cylinder is fixedly connected to the outer surfaces of the upper cover and the lower cover at the top and bottom ends with connecting flanges, and two adjacent connecting flanges are bolted together.

[0009] As a further preferred embodiment of the present technical solution, a pressure gauge connecting pipe is fixedly connected to the outer surface of the heat exchange cylinder near the top end, and a steam pipe is fixedly connected to the outer surface of the heat exchange cylinder near the upper and lower ends.

[0010] As a further preferred embodiment of the present technical solution, a positioning sleeve is sleeved on the other ends of the plurality of heat-conducting tubes, the interior of the positioning sleeve is interference fit with the outer surfaces of the plurality of heat-conducting tubes, and four fixing seats are fixedly connected to the outer surface of the heat exchange cylinder.

[0011] The utility model provides a methyl ester synthesis tower reboiler, which has the following beneficial effects:

[0012] The utility model realizes that after the upper cover and the lower cover are disassembled, the clamping ring releases the restriction on the disassembly plate, and then the disassembly plate is pulled to drive the heat conduction pipe in the connecting sleeve to be drawn out from the heat exchange cylinder, and a new heat conduction pipe is replaced for continued use. The replaced heat conduction pipe is cleaned separately, thereby realizing rapid replacement of the heat exchange cylinder, greatly shortening the time required for cleaning the heat exchange cylinder, and indirectly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0015] Figure 3 It is an exploded schematic diagram of the structure of the connecting sleeve and the heat conducting pipe of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the heat conducting pipe of the utility model when it is pulled out.

[0017] In the figure: 1. heat exchange cylinder; 2. fixing plate; 3. connecting sleeve; 4. disassembly plate; 5. heat transfer pipe; 6. positioning sleeve; 7. upper cover; 8. clamping ring; 9. lower cover; 10. pipe inlet; 11. pipe outlet; 12. steam pipe; 13. pressure gauge connecting pipe; 14. connecting flange; 15. fixing seat. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] The utility model provides a technical solution: Figure 1-4As shown, in this embodiment, the methyl ester synthesis tower reboiler includes a heat exchange cylinder 1, and a fixing plate 2 is fixedly connected to the inner surface of the heat exchange cylinder 1 and near the upper and lower ends. A plurality of connecting sleeves 3 are fixedly connected between the two fixing plates 2, and a heat conducting pipe 5 is inserted inside the plurality of connecting sleeves 3. A disassembly plate 4 is inserted inside the heat exchange cylinder 1, and the bottom ends of the plurality of disassembly plates 4 are fixedly connected to the top ends of the plurality of heat conducting pipes 5. By providing the connecting sleeve 3, it is used to position the heat conducting pipe 5, and it is also convenient to take the heat conducting pipe 5 out of the heat exchange cylinder 1. By providing the fixing plate 2, it is used to fix the connecting sleeve 3, and a closed space can be formed in the heat exchange cylinder 1. By providing the disassembly plate 4, the heat conducting pipe 5 can be uniformly fixed, which is convenient for one-time extraction and improves disassembly efficiency.

[0020] like Figure 2 and Figure 3 As shown, an upper cover 7 is fixedly provided on the top of the heat exchange cylinder 1, and a clamping ring 8 is fixedly connected to the inner surface of the upper cover 7. The bottom end of the clamping ring 8 is in close contact with the top of the disassembly plate 4, and the outer surface of the upper cover 7 is fixedly connected to a pipe inlet 10. By providing the clamping ring 8, the disassembly plate 4 can be clamped and fixed to improve the stability of the heat conduction pipe 5 and avoid shaking. At the same time, the clamping effect of the clamping ring 8 and the disassembly plate 4 can seal the edge of the disassembly plate 4 to prevent materials from entering the inside of the connecting sleeve 3.

[0021] like Figure 1 and Figure 2 As shown, a lower cover 9 is fixedly provided at the bottom end of the heat exchange cylinder 1, and a pipe outlet 11 is fixedly connected to the bottom end of the lower cover 9 for discharging the separated materials.

[0022] like Figure 1 and Figure 4 As shown, the outer surface of the heat exchange cylinder 1 and the outer surfaces of the upper cover 7 and the lower cover 9 are fixedly connected with connecting flanges 14 at the top and bottom positions, and two adjacent connecting flanges 14 are bolted together. By setting the docking flanges 14, the connection and fixation between the upper cover 7 and the lower cover 9 are facilitated, and the sealing performance can be improved.

[0023] like Figure 1 As shown, a pressure gauge connecting pipe 13 is fixedly connected to the outer surface of the heat exchange cylinder 1 near the top position, and a steam pipe 12 is fixedly connected to the outer surface of the heat exchange cylinder 1 near the upper and lower ends. The steam pipe 12 is used to pass into the interior of the heat exchange cylinder 1 to achieve a reboiling effect.

[0024] like Figure 3 As shown, the other ends of the multiple heat-conducting tubes 5 are sleeved with a positioning sleeve 6, the interior of the positioning sleeve 6 is interference fit with the outer surfaces of the multiple heat-conducting tubes 5, and the outer surface of the heat exchange cylinder 1 is fixedly connected with four fixing seats 15. By setting the positioning sleeve 6, the shape of the heat-conducting tube 5 can be positioned, and by setting the fixing seats 15, the device can be fixed.

[0025] The utility model provides a methyl ester synthesis tower reboiler, and the specific working principle is as follows:

[0026] When the heat-conducting tube 5 needs to be cleaned, the staff disassembles the upper cover 7 and the lower cover 9, and the clamping ring 8 releases the restriction on the disassembly plate 4. Then, the disassembly plate 4 is pulled to drive the heat-conducting tube 5 in the connecting sleeve 3 to be pulled out from the heat exchange cylinder 1, and a new heat-conducting tube 5 is replaced for continued use. The replaced heat-conducting tube 5 is cleaned separately.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A methyl ester synthesis tower reboiler, comprising a heat exchange cylinder (1), characterized in that: A fixing plate (2) is fixedly connected to the inner surface of the heat exchange cylinder (1) near the upper and lower ends; a plurality of connecting sleeves (3) are fixedly connected between the two fixing plates (2); a heat conduction pipe (5) is inserted into the interior of the plurality of connecting sleeves (3); a disassembly plate (4) is inserted into the interior of the heat exchange cylinder (1); the bottom ends of the plurality of disassembly plates (4) are fixedly connected to the top ends of the plurality of heat conduction pipes (5).

2. The methyl ester synthesis tower reboiler according to claim 1, characterized in that: An upper cover (7) is fixedly provided on the top of the heat exchange cylinder (1), a clamping ring (8) is fixedly connected to the inner surface of the upper cover (7), the bottom end of the clamping ring (8) is in close contact with the top of the disassembly plate (4), and the outer surface of the upper cover (7) is fixedly connected to a pipe-side inlet (10).

3. The methyl ester synthesis tower reboiler according to claim 2, characterized in that: A lower cover (9) is fixedly provided at the bottom end of the heat exchange cylinder (1), and the bottom end of the lower cover (9) is fixedly connected to a pipe-side outlet (11).

4. The methyl ester synthesis tower reboiler according to claim 3, characterized in that: The outer surface of the heat exchange cylinder (1) is fixedly connected to the outer surfaces of the upper cover (7) and the lower cover (9) at the top and bottom ends thereof with connecting flanges (14), and two adjacent connecting flanges (14) are connected by bolts.

5. The methyl ester synthesis tower reboiler according to claim 4, characterized in that: A pressure gauge connecting pipe (13) is fixedly connected to the outer surface of the heat exchange cylinder (1) near the top end, and a steam pipe (12) is fixedly connected to the outer surface of the heat exchange cylinder (1) near the upper and lower ends.

6. The methyl ester synthesis tower reboiler according to claim 1, characterized in that: The other ends of the plurality of heat-conducting tubes (5) are sleeved with a positioning sleeve (6), the interior of the positioning sleeve (6) is interference-fitted with the outer surfaces of the plurality of heat-conducting tubes (5), and the outer surface of the heat-exchange cylinder (1) is fixedly connected with four fixing seats (15).

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