CN218248586U - Cluster rectification device - Google Patents

Abstract

The utility model belongs to the technical field of rectification devices, in particular to a cluster rectification device, which includes a cylinder body, a head and a rectification tube, and also includes a diverter plate and a tube plate; the diverter plate is installed inside the head , and a liquid phase introduction pipe communicating with the splitter plate is also installed on the head, and the splitter plate includes a disc body, a main flow channel and a flow channel; the cluster rectification device of the present utility model adopts a spiral groove The line of microchannel rectification tubes can effectively reduce the mass transfer distance, increase the gas-liquid contact area and contact time, and improve the mass and heat transfer efficiency; using multiple orderly arranged rectification tubes, the synergy of the actual The rectification capacity has been greatly increased, which has solved a practical problem that plagued microchannel rectification, and laid a solid foundation for its popularization and application; the rectification tubes do not affect each other, and the positioning and installation of the tube plate is used to facilitate rectification The installation and use of the tube and the separate disassembly, cleaning, maintenance and replacement reduce the maintenance cost.

Description

A device for cluster distillation

technical field

The utility model belongs to the technical field of rectification devices, in particular to a device for cluster rectification.

Background technique

Rectification is a separation process that uses the different volatilities of the components in the mixture to separate the components. Commonly used equipment includes plate distillation towers and packed distillation towers. Rectification is usually carried out in rectification towers. The two phases of the liquid are contacted in countercurrent to conduct interphase heat and mass transfer. The volatile components in the liquid phase enter the gas phase, and the less volatile components in the gas phase transfer to the liquid phase, so that almost pure volatile components can be obtained at the top of the tower. points, almost pure low-volatile components can be obtained at the bottom of the tower.

In recent years, with the progress of research on "three transmissions and one reversion" at the microscale, the performance of microscale fluids has been deeply revealed, and microchemical technology, as a new development direction in chemical engineering, has been vigorously developed and widely used In the fields of scientific research and industrial production, the trend of traditional distillation towers to microchannel distillation towers is imminent.

The rectification process in the micro-channel rectification device can effectively reduce the mass transfer distance, increase the surface area, and reduce the size of the device. The fluids in the micro-channel can contact each other in thin layers of several microns to achieve rapid micro-mixing at the millisecond level. ;In addition, the amount of material held in the microchannel is very small, so the microchannel distillation has inherent safety, which can significantly improve the safety of the distillation process and realize continuous production; the miniaturization of the production device can also realize the production of dangerous and unstable compounds. In-situ production on demand, avoiding the danger of transportation and storage of hazardous compounds; in addition, modular microreactors can be scaled up to achieve large-scale production without amplification effects, thus accelerating the industrialization of laboratory results.

In actual production, although the microchannel rectification column has many advantages, the rectification capacity of a single rectification column is limited, so cluster devices are used in actual production. At present, the Chinese utility model patent with application number 201320528484. "Cluster rectification tower", which has multiple tower tubes arranged side by side and is made of metal materials, can effectively avoid the safety hazards of glass rectification towers, and can make it develop to a larger tonnage.

However, when the traditional cluster distillation tower is actually used, multiple tower tubes in the distillation tower are fixedly installed by welding, which is not conducive to cleaning the tower tubes, and it is also not convenient to repair or replace damaged parts.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model provides a cluster rectification device, which has the characteristics of convenient use and easy disassembly.

In order to achieve the above purpose, the utility model provides the following technical solutions: a device for cluster rectification, including a cylinder, a head and a rectification tube, and the two heads are respectively fixed on the top and bottom of the cylinder , and a connecting pipe is communicated with the head, and a plurality of rectification tubes are uniformly installed in the cylinder body, and the cluster rectification device also includes a diverter plate and a tube plate;

The two tube sheets are installed on the inner side of the upper port and the lower port of the cylinder body respectively, and support rings are fixed on the inner wall of the cylinder body near the top end and near the bottom end for installing the tube sheet, Inserting holes for the rectification tube to pass through are evenly opened on the tube plate, and limit rings are fixed on the outer wall of the rectification tube near the top and near the bottom;

The diverter plate is installed inside the head, and a liquid phase introduction pipe communicating with the diverter plate is also installed on the head, the diverter plate includes a disc body, a main flow in the disc channel and a plurality of shunt channels opened in the disc body and communicated with the main channel, an introduction nozzle communicated with the main channel is installed on the top surface of the disc body, and an inlet nozzle communicated with the main channel is installed on the bottom surface of the disc body. The outlet nozzle is embedded in the rectification tube.

As a preferred technical solution of the present invention, spiral groove lines are processed on the inner wall of the rectification tube.

As a preferred technical solution of the present invention, the distance between the two supporting rings is equal to the distance between the two limiting rings.

As a preferred technical solution of the present invention, a plurality of No. 1 positioning stubs distributed at equal intervals along the circumferential direction are fixed on the support ring, and a No. 1 positioning stub is provided on the tube plate for the No. 1 positioning stubs. No. 1 positioning hole through; the tube plate is installed on the support ring with bolts.

As a preferred technical solution of the present invention, a plurality of No. 2 positioning stubs distributed at equal intervals along the circumferential direction are fixed on the limiting ring, and there are also provided on the tube plate for the No. 2 positioning stubs. The No. 2 positioning hole through which the short column passes.

Compared with the prior art, the beneficial effect of the utility model is: the cluster rectification device of the utility model adopts the microchannel rectification tube with the spiral groove line, which can effectively reduce the mass transfer distance, increase the gas-liquid contact area and The contact time improves the efficiency of mass transfer and heat transfer; the use of multiple rectification tubes arranged in an orderly manner and their synergistic effect greatly increase the actual rectification volume, which solves a practical problem that plagues microchannel rectification. The promotion and application has laid a solid foundation; the rectification tubes do not affect each other, and the positioning and installation are realized by using the tube plate, which is conducive to the installation and use of the rectification tubes and the separate disassembly, cleaning, maintenance and replacement, reducing maintenance costs.

Description of drawings

The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the description, and are used to explain the utility model together with the embodiments of the utility model, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the schematic diagram of enlarged structure at A place in Fig. 1 of the utility model;

Fig. 3 is a schematic diagram of the axonometric structure of the diverter plate in the utility model;

In the figure: 1. Cylinder body; 2. Head; 3. Connector; 4. Liquid phase introduction pipe; 5. Splitter plate; 6. Tube sheet; 7. Distillation tube; ; 10, No. 1 positioning short post; 11, No. 1 positioning hole; 12, limit ring; 13, No. 2 positioning short post; 14, No. 2 positioning hole; 15, spiral groove line; 16, disc body; 17, Lead-in mouth; 18, main channel; 19, export mouth; 20, shunt channel.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-Fig. 3, the utility model provides the following technical solutions: a device for cluster rectification, comprising a cylinder 1, a head 2 and a rectification tube 7, and the two heads 2 are respectively fixed on the sides of the cylinder 1 The top end and the bottom end, and there is a connecting pipe 3 on the head 2, and a plurality of rectification pipes 7 are evenly installed in the cylinder 1. In actual production, 20-30 rectification pipes 7 can be installed in the cylinder 1 , the device for cluster distillation also includes a splitter plate 5 and a tube sheet 6;

As shown in accompanying drawings 1 and 2, in this embodiment, two tube sheets 6 are installed on the inner side of the upper port and the lower port of the cylinder 1 respectively, and are located near the top and bottom of the inner wall of the cylinder 1 Both support rings 9 are fixed for installing the tube sheet 6, on the tube sheet 6 there are evenly provided with insertion holes 8 for the rectification tube 7 to pass through, and the outer wall of the rectification tube 7 near the top and near the bottom are all fixed to a limited extent. Position ring 12, therefore, when in use, use the insertion hole 8 of the tube plate 6 to locate the installation position of the rectification tube 7, and ensure the alignment of the rectification tube 7 through the cooperation of the tube plate 6, the support ring 9 and the limit ring 12. Stability, the support ring 9 is used to install the tube sheet 6, and the two tube sheets 6 clamp two limit rings 12 towards the inside;

As shown in accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, in this embodiment, the splitter plate 5 is installed inside the head 2, and the liquid phase introduction pipe 4 communicating with the splitter plate 5 is also installed on the head 2 The diverter plate 5 includes a disc body 16, a main flow channel 18 provided in the disc body 16, and a plurality of flow channel 20 provided in the disc body 16 and communicating with the main flow channel 18. The inlet nozzle 17 that road 18 communicates, the outlet nozzle 19 that communicates with shunt channel 20 is installed on the bottom surface, outlet nozzle 19 is embedded in rectifying tube 7, therefore, when in use, liquid phase injects liquid phase inlet pipe 4, then from inlet nozzle 17 enters the main channel 18, and then enters each rectification tube 7 through the sub-flow channel 20 and the outlet nozzle 19. The gas phase is injected from the bottom of the device and contacts the liquid phase in the rectification tube 7.

As shown in accompanying drawing 1 and accompanying drawing 2, as an optional embodiment, in this embodiment, the inner wall of rectifying tube 7 is processed with spiral groove line 15, and gas phase and liquid phase can follow spiral groove line 15 flow, increase the gas-liquid contact area and contact time, and improve the efficiency of mass transfer and heat transfer.

As shown in accompanying drawing 1 and accompanying drawing 2, as an optional embodiment, in this embodiment, the distance between the two support rings 9 is equal to the distance between the two limiting rings 12, which can be divided into equal proximal distance and far distance. The end intervals are equal, that is, the thickness of the support ring 9 and the limit ring 12 are consistent, and the installation height is the same, so as to ensure that the two tube plates 6 reliably clamp the two limit rings 12 towards the inside.

As shown in accompanying drawings 1 and 2, as an optional embodiment, in this embodiment, a plurality of No. 1 positioning stubs 10 distributed at equal intervals along the circumferential direction are fixed on the support ring 9, The plate 6 is provided with a No. 1 positioning hole 11 through which the No. 1 positioning short column 10 penetrates; the tube plate 6 is installed on the supporting ring 9 by using bolts to further improve the stability of the tube plate 6, and the tube plate 6 can be removed later , the rectifying tube 7 that needs to be cleaned, repaired or replaced can be directly drawn out, which is very convenient.

As shown in accompanying drawings 1 and 2, as an optional embodiment, in this embodiment, a plurality of No. 2 positioning stubs 13 distributed at equal intervals along the circumferential direction are fixed on the limiting ring 12. The tube sheet 6 is also provided with a No. 2 positioning hole 14 through which the No. 2 positioning short column 13 penetrates, so as to further improve the stability of the rectifying tube 7 and prevent the rectifying tube 7 from rotating accidentally.

The working principle and use process of the utility model: the cluster rectification device of the utility model, when in use, uses the insertion hole 8 of the tube plate 6 to locate the installation position of the rectification tube 7, and passes the tube plate 6, the supporting ring 9 and the cooperation of the limit ring 12 ensure the stability of the rectification tube 7, the support ring 9 is used to install the tube sheet 6, the two tube sheets 6 clamp the two limit rings 12 towards the inside, and the tube sheet 6 is installed on the The support ring 9, and the tube plate 6 can be removed in the later stage, and the rectifying tube 7 that needs to be cleaned, repaired or replaced can be directly pulled out, which is very convenient;

When in use, the liquid phase is injected into the liquid phase inlet pipe 4, then enters the main flow channel 18 from the inlet nozzle 17, then enters each rectification pipe 7 through the runner 20 and the outlet nozzle 19, and the gas phase is injected from the bottom of the device. The inside of the tube 7 is in contact with the liquid phase.

In all examples shown and described herein, any specific values should be construed as merely exemplary and not limiting, and thus other examples of the exemplary embodiments may have different values.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In addition, in the description of the embodiments of the present utility model, unless otherwise clearly stipulated and limited, the terms "installation", "connection", "connection", "setting", "installation" and the like should be understood in a broad sense, for example, It can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (5)

1. A device for cluster rectification, comprising cylinder body (1), end cap (2) and rectification pipe (7), two described end caps (2) are respectively fixed on the sides of the cylinder body (1) The top end and the bottom end, and a connection pipe (3) is communicated on the head (2), and a plurality of the rectification pipes (7) are evenly installed in the cylinder body (1), and it is characterized in that: the The device for cluster rectification also includes a splitter plate (5) and a tube sheet (6); The two tube plates (6) are installed on the inside of the upper port and the lower port of the cylinder (1) respectively, and brackets are fixed on the inner wall of the cylinder (1) near the top and near the bottom. The ring (9) is used to install the tube sheet (6), and the tube sheet (6) is uniformly provided with socket holes (8) for the rectification tube (7) to pass through. The outer wall of the pipe (7) is fixed with a limit ring (12) near the top and near the bottom; The diverter plate (5) is installed inside the head (2), and a liquid phase introduction pipe (4) communicating with the diverter plate (5) is also installed on the head (2), so The diverter plate (5) includes a disc body (16), a main channel (18) opened in the disc body (16), and a main channel (18) opened in the disc body (16) and communicated with the main channel (18). A plurality of runners (20), the top surface of the disc body (16) is installed with the inlet nozzle (17) communicated with the main channel (18), the bottom surface is installed with the inlet mouth (17) communicated with the runners (20) The outlet nozzle (19), the outlet nozzle (19) is embedded in the rectification tube (7). 2. A cluster rectification device according to claim 1, characterized in that: a spiral groove line (15) is processed on the inner wall of the rectification tube (7). 3. A cluster rectification device according to claim 1, characterized in that the distance between the two supporting rings (9) is equal to the distance between the two limiting rings (12). 4. A kind of cluster rectification device according to claim 1, characterized in that: a plurality of No. 1 positioning short columns (10) distributed at equal intervals along the circumferential direction are fixed on the support ring (9), A No. 1 positioning hole (11) for the No. 1 positioning stub (10) to pass through is opened on the tube plate (6); the tube plate (6) is installed on the support ring (9) by bolts. superior. 5. A device for cluster rectification according to claim 1, characterized in that: a plurality of No. 2 positioning stubs (13) distributed equally along the circumferential direction are fixed on the limiting ring (12) , a No. 2 positioning hole (14) for passing through the No. 2 positioning stub (13) is also opened on the tube sheet (6).

Images