CN209828307U

CN209828307U - Methanol rectifying tower

Info

Publication number: CN209828307U
Application number: CN201920381883.3U
Authority: CN
Inventors: 盖炳凯; 纪银冰; 祁亚琴
Original assignee: Yantai Far East Fine Chemical Co Ltd
Current assignee: Yantai Far East Fine Chemical Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2019-12-24
Anticipated expiration: 2029-03-25

Abstract

The utility model discloses a methanol rectifying tower, steam inlet pipe, fourth barrel and closing cap at the bottom of bottom plate, first barrel, tower, the top fixed mounting of bottom plate has first barrel, the central point fixed mounting of the positive bottom of first barrel has the outage, and the middle part fixed mounting of first barrel one side has the exhaust hole, fixed mounting has oval head in the second barrel of pipeline top, mounting flange fixed mounting has the closing cap through the top of fifth barrel, the top fixed mounting of closing cap has top of the tower steam outlet pipe, and one side fixed mounting of closing cap has the temperature measurement pipe, the positive fixed mounting of first barrel has the cat ladder that extends to on the closing cap. The utility model discloses a cat ladder for maintaining that sets up can make things convenient for maintenance person to scramble to the top of the tower and clear up the maintenance, makes things convenient for the periodic maintenance of rectifying column, and then has increased the life of rectifying column to rectifying column's practicality has been improved.

Description

Methanol rectifying tower

Technical Field

The utility model relates to a methanol rectification technical field specifically is a methanol rectifying tower.

Background

Methanol is an important chemical product, in the production process of methanol, distillation residual liquid which is about 20 percent (even higher proportion) of the yield of the methanol and is discharged from the bottom of a rectifying tower is generally called as methanol wastewater, if the methanol wastewater is directly discharged into a water body, serious pollution and damage are caused to the environment, a vaporization method is adopted in common methanol wastewater treatment, the vaporization method utilizes a common waste heat boiler in production as a heat source according to the physical characteristic that the boiling point of alcohol substances is low, low-boiling-point organic matters in the wastewater are vaporized and then are input into a gas making furnace for manufacturing raw material gas, the dual purposes of treating the wastewater and recovering the raw materials are achieved, the methanol rectifying tower is used in the process, the traditional rectifying tower does not have a maintenance structure when in use, inspection and maintenance are inconvenient, meanwhile, the traditional rectifying tower generally detects the temperature at the bottom and cannot detect the steam discharge position at the top of the tower, so that the temperature of the discharged steam cannot be known, thereby affecting the distillation effect, and therefore, it is necessary to improve the prior art to solve the above problems.

Disclosure of Invention

An object of the utility model is to provide a methanol rectifying tower to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a methanol rectifying tower comprises a bottom plate, a first barrel, a tower bottom steam inlet pipe, a fourth barrel and a sealing cover, wherein the first barrel is fixedly mounted at the top of the bottom plate, a liquid discharge hole is fixedly mounted at the central position of the front bottom of the first barrel, an exhaust hole is fixedly mounted at the middle position of one side of the first barrel, a second barrel is fixedly mounted at the top of the first barrel through a mounting flange, pipelines are fixedly mounted at the middle positions of two sides of the second barrel, a tower bottom discharge pipe is fixedly mounted in the pipeline of one side of the second barrel close to the exhaust hole, an oval sealing head is fixedly mounted in the second barrel above the pipeline, an anti-vortex baffle communicated with the tower bottom discharge pipe is fixedly mounted at the central position of the top of the oval sealing head, a third barrel is fixedly mounted at the top of the second barrel through a mounting flange, a hydraulic hole connecting pipe is fixedly mounted at the front of the third barrel, and both sides of the third cylinder are fixedly provided with liquid level meter connecting pipes, one side of the third cylinder above the liquid level meter connecting pipes is fixedly provided with a tower bottom steam inlet pipe, a feeding pipe is fixedly arranged on one side of the third cylinder body, which is far away from the tower bottom steam inlet pipe, a fourth cylinder body is fixedly arranged at the top of the third cylinder body through an installation flange, a liquid distributor is fixedly arranged at the bottom in the fourth cylinder, a filler supporting plate is fixedly arranged in the fourth cylinder above the liquid distributor, and the interior of the packing support plate is fixedly provided with a structured packing layer, the top of the fourth cylinder body is fixedly provided with a fifth cylinder body through an installation flange, the top of the fifth cylinder is fixedly provided with a sealing cover through a mounting flange, the top of the sealing cover is fixedly provided with a tower top steam outlet pipe, and one side of the sealing cover is fixedly provided with a temperature measuring tube, and the front surface of the first barrel is fixedly provided with a ladder stand extending to the sealing cover.

Preferably, rib plates are fixedly mounted at the tops of the bottom plates on the two sides of the first cylinder, and a cover plate is fixedly mounted at the tops of the rib plates.

Preferably, the port department of steam inlet pipe, top of the tower steam outlet pipe and bottom of the tower discharging pipe all fixedly mounted with flange at the bottom of the tower, and flange's lateral surface fixed mounting has the seal gasket.

Preferably, the first cylinder, the second cylinder, the third cylinder, the fourth cylinder, the fifth cylinder and the sealing cover are all made of carbon steel with the outer surfaces coated with anti-corrosion coatings.

Preferably, the end heads of the liquid level meter connecting pipe and the temperature measuring pipe are fixedly provided with end sockets.

Preferably, a structured packing layer is fixedly arranged between the packing support plates, and the structured packing layer adopts wire mesh corrugated packing.

Compared with the prior art, the beneficial effects of the utility model are that: this cat ladder for maintenance that methyl alcohol rectifying column set up can make things convenient for maintenance personal to climb and clear up to the top of the tower and maintain, makes things convenient for the periodic maintenance of rectifying column, and then has increased the life of rectifying column, thereby the practicality of rectifying column has been improved, the temperature measurement pipe that sets up in the top of the tower steam outlet pipe position department of closing cap can detect the temperature of steam exhaust position, thereby the effect of rectification has been increased, and then the purity of rectification has been improved, convenient to popularize and use.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a top view of the present invention.

In the figure: 1. a base plate; 2. a rib plate; 201. a cover plate; 3. a first cylinder; 4. installing a flange; 5. a second cylinder; 6. a pipeline; 7. an elliptical head; 8. a third cylinder; 9. a liquid level meter adapter tube; 10. a tower bottom steam inlet pipe; 11. a liquid distributor; 12. a packing support plate; 13. a fourth cylinder; 14. a structured packing layer; 15. a feed pipe; 16. a fifth cylinder; 17. sealing the cover; 18. an overhead vapor outlet pipe; 19. a temperature measuring tube; 20. sealing the end; 21. a hydraulic hole connecting pipe; 22. an anti-vortex baffle; 23. a connecting flange; 24. sealing gaskets; 25. a discharge pipe at the bottom of the tower; 26. an exhaust hole; 27. a drain hole; 28. the ladder is climbed.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a methanol rectifying tower comprises a bottom plate 1, a first barrel 3, a tower bottom steam inlet pipe 10, a fourth barrel 13 and a sealing cover 17, wherein the top of the bottom plate 1 is fixedly provided with the first barrel 3, the bottom plate 1 is convenient for the fixed installation of the first barrel 3, a liquid discharge hole 27 is fixedly arranged at the central position of the front bottom of the first barrel 3, the middle part of one side of the first barrel 3 is fixedly provided with an exhaust hole 26, the liquid discharge hole 27 is convenient for the discharge of waste liquid in the rectifying process, the exhaust hole 26 can discharge downward moving steam, the top of the first barrel 3 is fixedly provided with the second barrel 5 through an installation flange 4, the installation flange 4 is convenient for the fixed installation of a plurality of groups of barrels, the middle parts of two sides of the second barrel 5 are fixedly provided with pipelines 6, a tower bottom discharging pipe 25 is fixedly arranged in the pipeline 6 of one side, close to the exhaust hole 26, of the second barrel 5, the pipeline 6 is convenient for, the tower bottom discharge pipe 25 can discharge impurities generated by rectification, the second barrel 5 above the pipeline 6 is internally and fixedly provided with an oval end socket 7, the central position of the top of the oval end socket 7 is fixedly provided with an anti-vortex baffle 22 communicated with the tower bottom discharge pipe 25, the oval end socket 7 can concentrate the impurities, the anti-vortex baffle 22 can avoid the situation that the impurities are discharged along water flow due to vortex, the top of the second barrel 5 is fixedly provided with a third barrel 8 through a mounting flange 4, the front of the third barrel 8 is fixedly provided with a hydraulic hole connecting pipe 21, both sides of the third barrel 8 are fixedly provided with liquid level meter connecting pipes 9, the hydraulic hole connecting pipe 21 can be connected with a hydraulic detection device, the liquid level meter connecting pipes 9 can be used for installing liquid level meter pipes, so that the detection of hydraulic pressure and liquid level in the tower body is convenient, one side of the third barrel 8 above the liquid level meter connecting pipes 9 is fixedly provided with a tower bottom steam, a feeding pipe 15 is fixedly installed on one side of the third cylinder 8 far away from the tower bottom steam inlet pipe 10, the tower bottom steam inlet pipe 10 can be connected with the exhaust hole 26 through a circulating pipe, so that orderly cyclic rectification which is not completed with rectification is performed, a fourth cylinder 13 is fixedly installed on the top of the third cylinder 8 through an installation flange 4, a liquid distributor 11 is fixedly installed at the bottom in the fourth cylinder 13, the liquid distributor 11 can disperse liquid generated by rectification, the situation that the liquid blocks the steam to be discharged is avoided, a packing support plate 12 is fixedly installed in the fourth cylinder 13 above the liquid distributor 11, a structured packing layer 14 is fixedly installed inside the packing support plate 12, the structured packing support plate 12 can be fixedly installed on the structured packing layer 14, the structured packing layer 14 can filter mixed steam of methanol, a fifth cylinder 16 is fixedly installed on the top of the fourth cylinder 13 through the installation flange 4, there is a closing cap 17 at the top of the fifth barrel 16 through mounting flange 4 fixed mounting, there is a top of the tower steam outlet pipe 18 at the top of closing cap 17 fixed mounting, and one side fixed mounting of closing cap 17 has temperature tube 19, top of the tower steam outlet pipe 18 can make things convenient for methanol steam to discharge, temperature tube 19 can be easy to assemble temperature-detecting device, thereby detect the temperature of discharged methanol steam, the positive fixed mounting of first barrel 3 has cat ladder 28 that extends to on the closing cap 17, cat ladder 28 can make things convenient for maintainer to climb to the outside of rectifying column and maintain.

Further, the top fixed mounting of first barrel 3 both sides bottom plate 1 has gusset 2, and the top fixed mounting of gusset 2 has apron 201, and in the embodiment, gusset 2 can be through increasing the area of contact of first barrel 3 with the bottom surface to increase the stability of first barrel 3, apron 201 can carry out fixed mounting to gusset 2.

Furthermore, the ports of the tower bottom steam inlet pipe 10, the tower bottom steam inlet pipe 15, the tower top steam outlet pipe 18 and the tower bottom outlet pipe 25 are all fixedly provided with a connecting flange 23, and the outer side surface of the connecting flange 23 is fixedly provided with a sealing gasket 24, in the embodiment, the connecting flange 23 is convenient for the fixed connection of an external pipe, and the sealing gasket 24 can play a role in sealing connection.

Further, the first cylinder 3, the second cylinder 5, the third cylinder 8, the fourth cylinder 13, the fifth cylinder 16 and the seal cover 17 are all made of carbon steel with the outer surfaces coated with anti-corrosion coatings, in the embodiment, the anti-corrosion coatings can play a role in anti-corrosion, so that the service life of the rectifying tower is prolonged.

Further, the end of the liquid level meter connecting pipe 9 and the end of the temperature measuring pipe 19 are fixedly provided with the end socket 20, in the embodiment, the end socket 20 can be used for conveniently sealing and splicing a detection instrument connected with the liquid level meter connecting pipe 9 and the temperature measuring pipe 19.

Further, regular packing layer 14 is fixedly installed between packing support plates 12, and regular packing layer 14 adopts wire mesh corrugated packing, in the embodiment, regular packing layer 14 of wire mesh corrugated packing is the main form of mesh corrugated packing, and is made of wire mesh, and its main characteristics include large circulation, small tower body resistance, reduced pressure, large surface area, strong liquid uniform distribution capacity, high mass transfer and heat transfer efficiency, large operation flexibility, and convenient installation and maintenance.

The working principle is as follows: during the use, add crude methyl alcohol in the rectifying column through inlet pipe 15 in the fifth barrel 16, the light component in the methyl alcohol is discharged by the top of the tower, the heavy component of high boiling filters through regular packing layer 14 under the high temperature condition to discharge filterable water and impurity from outage 27 at the bottom of the tower, product methyl alcohol is discharged through closing cap 17 top of the tower steam outlet pipe 18, can pour into the rectifying column through bottom steam inlet pipe 10 with the steam that bottom exhaust hole 26 was discharged in the rectification process and realize the circulation rectification.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a methyl alcohol rectifying column, includes bottom plate (1), first barrel (3), tower bottom steam inlet pipe (10), fourth barrel (13) and closing cap (17), its characterized in that: the top of the bottom plate (1) is fixedly provided with a first barrel (3), the central position of the front bottom of the first barrel (3) is fixedly provided with a liquid discharge hole (27), the middle part of one side of the first barrel (3) is fixedly provided with an exhaust hole (26), the top of the first barrel (3) is fixedly provided with a second barrel (5) through a mounting flange (4), the middle parts of the two sides of the second barrel (5) are fixedly provided with pipelines (6), the interior of the pipeline (6) of one side of the exhaust hole (26) close to the second barrel (5) is fixedly provided with a tower bottom discharge pipe (25), the interior of the second barrel (5) above the pipelines (6) is fixedly provided with an oval end socket (7), and the central position of the top of the oval end socket (7) is fixedly provided with an anti-vortex baffle (22) communicated with the tower bottom discharge pipe (25), the top of second barrel (5) has third barrel (8) through mounting flange (4) fixed mounting, the positive fixed mounting of third barrel (8) has hydraulic pressure hole to take over (21), and the both sides of third barrel (8) all fixed mounting have the level gauge to take over (9), one side fixed mounting that the level gauge was taken over (9) top third barrel (8) has bottom steam inlet pipe (10), and one side fixed mounting that bottom steam inlet pipe (10) was kept away from in third barrel (8) has inlet pipe (15), the top of third barrel (8) has fourth barrel (13) through mounting flange (4) fixed mounting, bottom fixed mounting in fourth barrel (13) has liquid distributor (11), fixed mounting has packing backup pad (12) in fourth barrel (13) of liquid distributor (11) top, and the inside fixed mounting of packing backup pad (12) has regular (14), the top of fourth barrel (13) has fifth barrel (16) through mounting flange (4) fixed mounting, the top of fifth barrel (16) has closing cap (17) through mounting flange (4) fixed mounting, the top fixed mounting of closing cap (17) has top of the tower steam outlet pipe (18), and one side fixed mounting of closing cap (17) has temperature measurement pipe (19), the positive fixed mounting of first barrel (3) has cat ladder (28) that extend to on closing cap (17).

2. A methanol rectification column as claimed in claim 1, characterized in that: the top of the bottom plates (1) on the two sides of the first cylinder (3) is fixedly provided with a rib plate (2), and the top of the rib plate (2) is fixedly provided with a cover plate (201).

3. A methanol rectification column as claimed in claim 1, characterized in that: the port department of tower bottom steam inlet pipe (10), inlet pipe (15), top of the tower steam outlet pipe (18) and bottom of the tower discharging pipe (25) all fixed mounting have flange (23), and the lateral surface fixed mounting of flange (23) has seal gasket (24).

4. A methanol rectification column as claimed in claim 1, characterized in that: the first cylinder body (3), the second cylinder body (5), the third cylinder body (8), the fourth cylinder body (13), the fifth cylinder body (16) and the seal cover (17) are all made of carbon steel materials, and the outer surfaces of the carbon steel materials are coated with anti-rust coatings.

5. A methanol rectification column as claimed in claim 1, characterized in that: and an end socket (20) is fixedly arranged at the end heads of the liquid level meter connecting pipe (9) and the temperature measuring pipe (19).

6. A methanol rectification column as claimed in claim 1, characterized in that: a structured packing layer (14) is fixedly arranged between the packing support plates (12), and the structured packing layer (14) adopts wire mesh corrugated packing.