CN211676368U

CN211676368U - Vacuum distillation instrument for implementing sectional cutting

Info

Publication number: CN211676368U
Application number: CN201922297694.0U
Authority: CN
Inventors: 苏本雷
Original assignee: Dongying Junchen Petroleum Equipment Co ltd
Current assignee: Dongying Junchen Petroleum Equipment Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-10-16
Anticipated expiration: 2029-12-19

Abstract

The utility model discloses a carry out vacuum distillation appearance of segmentation cutting, be responsible for and the distillation auxiliary pipe including distillation flask, distillation, the vertical intercommunication in distillation flask top has the distillation to be responsible for, the intercommunication has the distillation auxiliary pipe on the distillation main pipe lateral wall, the outer parcel of distillation main pipe and distillation auxiliary pipe has the cooling tube, end-to-end connection has a plurality of distillation branch pipes under the distillation auxiliary pipe, and each distillation branch bottom all is connected with the receiving flask, still install the valve on the distillation branch pipe. This carry out decompression distillation appearance of segmentation cutting end connection a plurality of distillation branch pipes and installation valve under the distillation branch pipe, connect the receiving flask bottom the distillation branch pipe, adjust the valve on the different distillation branch pipes through the different temperatures that the thermometer shows to realize the segmentation cutting of different fractions, cooperation temperature control system, but the switching of automatic control valve adjusts reliable and stable, and the segmentation effect is accurate, and collection efficiency is high.

Description

Vacuum distillation instrument for implementing sectional cutting

Technical Field

The utility model relates to a distillation apparatus, in particular to a reduced pressure distillation apparatus for implementing segmentation cutting.

Background

The vacuum distillation is to reduce the pressure in the system by a vacuum pump so as to reduce the boiling point of liquid, thus achieving the purpose of separating all or part of components in a liquid mixture, and is widely applied to the fields of organic synthesis, crude oil separation and the like at present.

At present, a conventional reduced pressure distillation instrument in a laboratory only consists of three parts, namely distillation, pressure reduction and safety protection, different fractions can flow into different liquid receiving devices through rotating a three-way distillation receiver in a distillation receiving part, but in the process of rotating the three-way distillation receiver, a certain degree of hysteresis effect exists, so that the sectional cutting is not timely, and the accuracy of the collected fractions is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a carry out vacuum distillation appearance of segmentation cutting 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:

the utility model provides an implement vacuum distillation appearance of segmentation cutting, includes distillation flask, distillation person in charge and distillation auxiliary, the vertical intercommunication in distillation flask top has the distillation person in charge, the intercommunication has the distillation auxiliary on the distillation person in charge lateral wall, the outer parcel of distillation person in charge and distillation auxiliary has the cooling tube, end-to-end connection has a plurality of distillation branch pipes under the distillation auxiliary, and each distillation branch pipe bottom all is connected with the receiving flask, still install the valve on the distillation branch pipe.

As a further aspect of the present invention: the bottom of the distillation flask is fixed with a support frame, the bottom of the support frame is provided with a base, and the collection bottle is fixed on the upper end face of the base.

As a further aspect of the present invention: the side wall of the cooling pipe at the lower end of the distillation auxiliary pipe is provided with a water inlet, and the side wall of the cooling pipe at the upper end of the distillation main pipe is provided with a water outlet.

As a further aspect of the present invention: the distillation main pipe is characterized in that a bottle plug is arranged at an opening in the upper end of the distillation main pipe, a thermometer vertically extending into the distillation main pipe is embedded in the bottle plug, and a temperature sensing probe at the lower end of the thermometer is located at the joint of the distillation main pipe and the distillation auxiliary pipe.

As a further aspect of the present invention: a temperature control system is arranged on the base; the thermometer is an electronic thermometer, and the valve is an electric control valve; the electronic thermometer is used for detecting the distillation temperature in real time and sending the detection data to the temperature control system, and the temperature control system is used for receiving the temperature data, carrying out proofreading processing and controlling the opening and closing of the electric control valves on the distillation branch pipes.

Compared with the prior art, the beneficial effects of the utility model are that:

this carry out decompression distillation appearance of segmentation cutting end connection a plurality of distillation branch pipes and installation valve under the distillation branch pipe, connect the receiving flask bottom the distillation branch pipe, adjust the valve on the different distillation branch pipes through the different temperatures that the thermometer shows to realize the segmentation cutting of different fractions, cooperation temperature control system, but the switching of automatic control valve adjusts reliable and stable, and the segmentation effect is accurate, and collection efficiency is high.

Drawings

FIG. 1 is a schematic view of a vacuum distillation apparatus for performing a step-cut operation;

FIG. 2 is a schematic view showing a structure of a distillation branch pipe in a vacuum distillation apparatus for carrying out the segmentation cutting.

In the figure: 1-base, 2-support frame, 3-distillation flask, 4-distillation main pipe, 5-distillation auxiliary pipe, 6-distillation branch pipe, 7-collecting bottle, 8-valve, 9-cooling pipe, 10-water inlet pipe, 11-water outlet pipe, 12-bottle plug, 13-thermometer and 14-temperature control system.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

Referring to fig. 1-2, a reduced pressure distillation apparatus for performing segmentation cutting comprises a distillation flask 3, a distillation main pipe 4 and a distillation sub-pipe 5, wherein the distillation main pipe 4 is vertically communicated above the distillation flask 3, the distillation sub-pipe 5 is communicated on the side wall of the distillation main pipe 4, a cooling pipe 9 is wrapped outside the distillation main pipe 4 and the distillation sub-pipe 5, the lower end of the distillation sub-pipe 5 is connected with a plurality of distillation branch pipes 6, the bottom of each distillation branch pipe 6 is connected with a collecting bottle 7, and a valve 8 is further installed on each distillation branch pipe 6;

a support frame 2 is fixed at the bottom of the distillation flask 3, a base 1 is arranged at the bottom of the support frame 2, and the collection bottle 7 is fixed on the upper end surface of the base 1;

in order to improve the cooling effect, a water inlet 10 is formed in the side wall of the cooling pipe 9 at the lower end of the distillation auxiliary pipe 5, a water outlet 11 is formed in the side wall of the cooling pipe 9 at the upper end of the distillation main pipe 4, so that the flow direction of the cooling water is opposite to the flow direction of the distillate, and the maximum cooling effect is achieved;

in order to accurately cut the distillate in sections, a bottle stopper 12 is arranged at the upper end opening of the distillation main pipe 4, a thermometer 13 vertically extending into the distillation main pipe 4 is embedded in the bottle stopper 12, and a temperature sensing probe at the lower end of the thermometer 13 is positioned at the joint of the distillation main pipe 4 and the distillation auxiliary pipe 5;

specifically, the specific components of the distillate are judged according to the distillation temperature displayed by the thermometer 13 during distillation, so that the opening and closing of the valve 8 on each distillation branch pipe 6 are adjusted, different distillates are distilled and cooled and then flow into different collecting bottles 7, and the purpose of sectional distillation and cutting is achieved.

The working principle of the embodiment is as follows:

firstly, liquid to be distilled is added into a distillation flask 3, the distillation flask 3 is heated, components with different evaporation temperatures in the liquid are evaporated at different heating temperatures, meanwhile, cooling water in a cooling pipe 9 cools evaporated fractions to be liquefied, a thermometer 13 detects the distillation temperature in real time, distillation components are judged according to the distillation temperature, opening and closing of valves 8 on distillation branch pipes 6 are adjusted, different fractions flow into different collection bottles 7 after being distilled and cooled, and the fractional cutting and collection of the fractions are achieved.

Example 2

Since there is a certain error and hysteresis effect in artificially judging the fraction according to the temperature and controlling the opening and closing of the valve 8, in order to more accurately realize the segmentation cutting, the embodiment is further improved on the basis of the embodiment 1, and the improvement is as follows: a temperature control system 14 is arranged on the base 1; the thermometer 13 is an electronic thermometer, and the valve 8 is an electric control valve; the electronic thermometer detects the distillation temperature in real time and sends the detection data to the temperature control system 14, the temperature control system 14 receives the temperature data and then carries out calibration processing and controls the opening and closing of the electric control valves on the distillation branch pipes 6, and therefore the segmentation cutting of the distillate is automatically controlled.

This carry out vacuum distillation appearance of segmentation cutting end connection a plurality of distillation branch pipes 6 and installation valve 8 under distillation branch pipe 5, connect receiving flask 7 in distillation branch pipe 6 bottom, adjust valve 8 on the different distillation branch pipes 6 through the different temperatures that thermometer 13 shows to realize the segmentation cutting of different fractions, cooperation temperature control system 14, but the switching of automatic control valve 8 adjusts reliable and stable, and the segmentation effect is accurate, and collection efficiency is high.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides an implement vacuum distillation appearance of segmentation cutting, includes distillation flask (3), distillation person in charge (4) and distillation auxiliary (5), the vertical intercommunication in distillation flask (3) top has distillation person in charge (4), the intercommunication has distillation auxiliary (5) on the distillation person in charge (4) lateral wall, the outer parcel of distillation person in charge (4) and distillation auxiliary (5) has cooling tube (9), its characterized in that, end-to-end connection has a plurality of distillation branch pipes (6) under distillation auxiliary (5), and each distillation branch pipe (6) bottom all is connected with receiving flask (7), still install valve (8) on distillation branch pipe (6).

2. The vacuum distillation apparatus for implementing the segmentation cutting as claimed in claim 1, wherein a support frame (2) is fixed at the bottom of the distillation flask (3), a base (1) is arranged at the bottom of the support frame (2), and the collection bottle (7) is fixed at the upper end surface of the base (1).

3. The vacuum distillation apparatus for performing the segmental cutting as claimed in claim 2, wherein the side wall of the cooling pipe (9) at the lower end of the secondary distillation pipe (5) is provided with a water inlet (10), and the side wall of the cooling pipe (9) at the upper end of the main distillation pipe (4) is provided with a water outlet (11).

4. A vacuum distillation apparatus for implementing subsection cutting according to claim 2 or 3, wherein the upper end opening of the distillation main pipe (4) is provided with a bottle stopper (12), a thermometer (13) vertically extending into the distillation main pipe (4) is embedded in the bottle stopper (12), and a temperature sensing probe at the lower end of the thermometer (13) is positioned at the connection position of the distillation main pipe (4) and the distillation auxiliary pipe (5).

5. A reduced pressure distillation apparatus for carrying out segmental cutting according to claim 4, wherein the base (1) is provided with a temperature control system (14); the thermometer (13) is an electronic thermometer, and the valve (8) is an electric control valve; the electronic thermometer is used for detecting the distillation temperature in real time and sending detection data to the temperature control system (14), and the temperature control system (14) is used for receiving the temperature data, performing calibration processing and controlling the opening and closing of the electronic control valves on the distillation branch pipes (6).