CN211676373U

CN211676373U - Chemical rectifying tower with backflow prevention function

Info

Publication number: CN211676373U
Application number: CN202020015313.5U
Authority: CN
Inventors: 朱爱玲
Original assignee: Xinchang Xinkai Machinery Co ltd
Current assignee: Xinchang Xinkai Machinery Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-10-16
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a chemical industry is with rectifying column that has anti-return function, including tower body and holding vessel, be equipped with back between tower body and the holding vessel and collect well bucket, be equipped with the steam pipe between tower body and the holding vessel, be equipped with the accumulator between steam pipe and the recovery concentrated bucket, be equipped with the anti-return dog in the steam pipe, the anti-return dog sets up the junction at accumulator and steam pipe, the anti-return dog sets up to round platform shape, the less one end of anti-return dog footpath length sets up towards the tower body, the great one end of anti-return dog footpath length sets up towards the holding vessel, run through on the lateral wall of anti-return dog and be equipped with the intercommunication groove. The utility model provides an improve prior art, compared in prior art structure and realized preventing the function of rectification liquid backward flow more simply, and can retrieve the rectification liquid that flows back to in the steam pipe and concentrate to retrieving in the concentrated bucket.

Description

Chemical rectifying tower with backflow prevention function

Technical Field

The utility model relates to a rectifying column technical field especially relates to a chemical industry is with rectifying column that has anti-reflux function.

Background

The rectifying tower is a tower-type vapor-liquid contact device for rectification, vapor enters from the bottom of the tower, the evaporated gas phase is in countercurrent contact with descending liquid, in the two-phase contact, volatile (low boiling point) components in the descending liquid are continuously transferred to the gas phase, and difficultly volatile (high boiling point) components in the gas phase are continuously transferred to the descending liquid, the concentration of the volatile components is higher as the gas phase is closer to the top of the tower, and the difficultly volatile components are enriched as the descending liquid is closer to the bottom of the tower, so that the purpose of component separation is achieved.

Through retrieval, the Chinese patent No. CN209490503U discloses a chemical rectifying tower with a backflow prevention function, which comprises a tower body, wherein a feed inlet is formed in one side above the tower body, a rectifying bin is arranged inside a placing plate, a heating plate is arranged on the outer side of the rectifying bin, a cooling box is arranged at the middle position above a collecting tank, a check valve is arranged at one end, away from the cooling box, of a second steam pipe, scale marks are formed in the outer side of an observation bin, and a material taking port is formed below one side, away from the tower body, of the collecting tank; although the backflow of the rectification liquid can be prevented by the check valve arranged between the first steam pipe and the second steam pipe, the following defects still exist: the rectification tower with the backflow prevention function for the chemical industry is provided for solving the problems that rectification liquid flowing back into a steam pipe cannot be recovered and concentrated, the steam pipe is prone to gathering more rectification liquid to affect production, and a check valve is prone to being damaged when being used in a high-temperature environment for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the rectifying column that has anti-reflux function is used in chemical industry that proposes, it has improved prior art, compares in prior art structure and realizes preventing the function of rectifying liquid backward flow more simply, and can retrieve the rectifying liquid that flows back to in the steam pipe and concentrate to retrieving in the concentrated bucket.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a chemical industry is with rectifying column that has anti-return function, includes tower body and collection tank, be equipped with the collection well bucket of returning between tower body and the collection tank, be equipped with the steam pipe between tower body and the collection tank, steam pipe and recovery are concentrated and are equipped with the collector tube between the bucket, be equipped with the anti-return dog in the steam pipe, the anti-return dog sets up the junction at collector tube and steam pipe, the anti-return dog sets up to the round platform shape, the less one end of anti-return dog footpath length sets up towards the tower body, the great one end of anti-return dog footpath length sets up towards the collection tank, run through on the lateral wall of anti-return dog and be equipped with the intercommunication groove, the lateral wall of the great one end of anti-return dog footpath length and the inner wall fixed connection of steam pipe, leave the clearance between the less one end.

Preferably, both ends of the steam pipe penetrate through the side wall of the tower body and the side wall of the collecting tank respectively, and the tower body is communicated with the collecting tank through the steam pipe.

Preferably, the upper end of the recovery pipe penetrates through the side wall of the steam pipe and is fixedly connected with the side wall of the steam pipe, and the lower end of the recovery pipe extends into the collection middle barrel.

Preferably, the end with the smaller diameter length of the communicating groove is arranged towards the tower body, and the end with the larger diameter length of the communicating groove is arranged towards the collecting tank.

Preferably, a barrel cover is mounted at the upper end of the collection middle barrel.

Preferably, a vent pipe orifice is arranged on the side wall of the barrel cover.

The utility model discloses following beneficial effect has: through set up the steam pipe between tower body and holding vessel, the collector tube, return and collect well bucket, anti-return dog and intercommunication groove, at the in-process of tower body work, the rectification liquid of backward flow can be blockked before collector tube and steam pipe junction by anti-return dog to in the bucket during collection flows back through the collector tube, prior art has been improved, compare in prior art structure and realize the function that prevents the rectification liquid backward flow more simply, and can concentrate the rectification liquid of backward flow to steam pipe in retrieving to concentrate the bucket.

Drawings

FIG. 1 is a schematic structural diagram of a chemical rectifying tower with backflow prevention function;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a schematic structural diagram of an anti-reflux stop block of a rectification tower with an anti-reflux function for chemical engineering.

In the figure: the device comprises a tower body 1, a collecting tank 2, a steam pipe 3, a recovery pipe 4, a collecting middle barrel 5, a backflow prevention stop block 6, a communicating groove 7 and a barrel cover 8.

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.

Referring to fig. 1-3, a rectifying tower with backflow prevention function for chemical industry, comprising a tower body 1 and a collecting tank 2, a backflow collecting middle barrel 5 is arranged between the tower body 1 and the collecting tank 2, a steam pipe 3 is arranged between the tower body 1 and the collecting tank 2, two ends of the steam pipe 3 respectively penetrate through the side wall of the tower body 1 and the side wall of the collecting tank 2, the tower body 1 and the collecting tank 2 are communicated through the steam pipe 3, a recovery pipe 4 is arranged between the steam pipe 3 and the recovery collecting central barrel 5, the upper end of the recovery pipe 4 penetrates through the side wall of the steam pipe 3 and is fixedly connected with the same, the lower end of the recovery pipe 4 extends into the backflow collecting middle barrel 5, a backflow prevention block 6 is arranged in the steam pipe 3, the backflow prevention block 6 is arranged at the joint of the recovery pipe 4 and the steam pipe 3, the backflow prevention block 6 is arranged in a circular truncated cone shape, the end with the smaller diameter of the backflow prevention block 6 is, run through on the lateral wall of anti-return dog 6 and be equipped with intercommunication groove 7, the less one end of intercommunication groove 7 footpath is towards tower body 1 setting, the great one end of intercommunication groove 7 footpath sets up towards holding vessel 2, the lateral wall of the great one end of anti-return dog 6 footpath and the inner wall fixed connection of steam pipe 3, leave the clearance between the less one end lateral wall of anti-return dog 6 footpath and the inner wall of steam pipe 3, be used for making the rectification liquid of backward flow to flow back in collecting bucket 5 through recovery tube 4, barrel cover 8 is installed to the upper end of bucket 5 in the collection, be equipped with the mouth of pipe of ventilating on the lateral wall of barrel cover 8.

Wherein, through set up steam pipe 3 between tower body 1 and holding vessel 2, recovery tube 4, return and collect well bucket 5, backflow prevention dog 6 and intercommunication groove 7, at the in-process of tower body 1 work, the rectification liquid of backward flow can be blockked before recovery tube 4 and steam pipe 3 junction by backflow prevention dog 6, and flow into through recovery tube 4 and collect in the well bucket 5, the prior art has been improved, compare in the function that the structure of the prior art realized preventing the rectification liquid backward flow more simply, and can be with the rectification liquid recovery of backward flow in the steam pipe 3 concentrate to retrieving in concentrating on bucket 5.

The utility model discloses in, improved prior art, compared in prior art structure and realized the function that prevents the rectification liquid backward flow more simply, at the in-process of 1 work of tower body, the rectification liquid of backward flow can be blockked by anti-return dog 6 before

recovery tube

4 and 3 junctions of steam pipe to in flowing back through recovery tube 4 and collecting well bucket 5.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The rectifying tower with the backflow preventing function for the chemical industry comprises a tower body (1) and a collecting tank (2), and is characterized in that a backflow collecting middle barrel (5) is arranged between the tower body (1) and the collecting tank (2), a steam pipe (3) is arranged between the tower body (1) and the collecting tank (2), a recovery pipe (4) is arranged between the steam pipe (3) and the backflow collecting middle barrel (5), a backflow preventing block (6) is arranged in the steam pipe (3), the backflow preventing block (6) is arranged at the joint of the recovery pipe (4) and the steam pipe (3), the backflow preventing block (6) is arranged in a circular truncated cone shape, one end of the backflow preventing block (6) with the smaller diameter is arranged towards the tower body (1), one end of the backflow preventing block (6) with the larger diameter is arranged towards the collecting tank (2), and a communicating groove (7) penetrates through the side wall of the backflow preventing block (6), the lateral wall of the end with the large diameter length of the anti-backflow stop block (6) is fixedly connected with the inner wall of the steam pipe (3), and a gap is reserved between the lateral wall of the end with the small diameter length of the anti-backflow stop block (6) and the inner wall of the steam pipe (3).

2. The distillation tower with the backflow preventing function for the chemical industry according to claim 1, wherein two ends of the steam pipe (3) penetrate through the side wall of the tower body (1) and the side wall of the collecting tank (2), and the tower body (1) and the collecting tank (2) are communicated through the steam pipe (3).

3. The rectification tower with the backflow preventing function for the chemical industry according to claim 1, wherein the upper end of the recovery pipe (4) penetrates through the side wall of the steam pipe (3) and is fixedly connected with the side wall, and the lower end of the recovery pipe (4) extends into the collection middle barrel (5).

4. The rectifying tower with backflow preventing function for chemical industry according to claim 1, wherein the end with the smaller diameter length of the communicating groove (7) is arranged towards the tower body (1), and the end with the larger diameter length of the communicating groove (7) is arranged towards the collecting tank (2).

5. The rectification tower with the backflow preventing function for the chemical industry as claimed in claim 1, wherein a barrel cover (8) is mounted at the upper end of the backflow collecting middle barrel (5).

6. The rectification tower with the backflow preventing function for the chemical industry as claimed in claim 5, wherein a vent pipe opening is formed in the side wall of the barrel cover (8).