CN216320046U

CN216320046U - Rectifying tower kettle system capable of continuously separating heavy components

Info

Publication number: CN216320046U
Application number: CN202122537997.2U
Authority: CN
Inventors: 严増源; 王润杰
Original assignee: Suzhou Boyang Chemicals Co ltd
Current assignee: Suzhou Boyang Chemicals Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-04-19
Anticipated expiration: 2031-10-21

Abstract

The utility model belongs to the technical field of rectifying equipment, and relates to a rectifying tower kettle system capable of continuously separating heavy components, which comprises a raw material tank, a raw material pump for pumping materials from the bottom of the raw material tank, a rectifying kettle connected with an outlet of the raw material pump, a rectifying tower connected to the rectifying kettle, a condenser positioned at an outlet at the upper part of the rectifying tower, a gas-liquid separator positioned at an outlet of the condenser, and a finished product tank positioned at the tail end of a liquid outlet of the gas-liquid separator, wherein an outlet at the bottom of the rectifying kettle is connected to a cooler, an outlet of the cooler is connected with a residual liquid tank, and a pipeline between the outlet at the bottom of the rectifying kettle and the cooler is provided with a first stop valve. The rectifying tower kettle system can continuously separate heavy components, so that the trouble of stopping the rectifying tower is avoided, and the time and energy waste are saved.

Description

Rectifying tower kettle system capable of continuously separating heavy components

Technical Field

The utility model relates to the technical field of rectifying equipment, in particular to a rectifying tower kettle system capable of continuously separating heavy components.

Background

In recent years, with the development of the semiconductor industry, the demand for domestic high-purity microelectronic cleaning solvents has also increased greatly. Especially low boiling point solvent (such as isopropanol, absolute ethyl alcohol, etc.), and basically achieves low water content, low metal impurity and low particle product through dehydration, rectification and filtration. Heavy components of the previous rectifying equipment are often remained in the bottom rectifying still, if the heavy components are discharged, the work of the rectifying tower must be stopped, so that the heavy components are discharged and need to be frequently started and stopped, and the production efficiency is influenced. There is a need for an improved piping structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a rectifying tower kettle system capable of continuously separating heavy components, which can discharge the heavy components from a rectifying tower kettle under the condition of not stopping the operation of the rectifying tower.

The utility model realizes the purpose through the following technical scheme: the utility model provides a can separate rectifying column cauldron system of heavy ends in succession, includes the raw materials groove, follows the raw materials pump, the connection of material tank bottom pump material pump, the rectifying still of the raw materials pump export, connect in rectifying column on the rectifying still, be located the condenser of rectifying column upper portion export, be located the vapour and liquid separator of condenser export and being located the terminal finished product groove of liquid outlet of vapour and liquid separator, the bottom exit linkage of rectifying still is in the cooler, the exit linkage raffinate groove of cooler, the bottom export of rectifying still arrives be equipped with first stop valve on the pipeline between the cooler.

Specifically, a first branch which is directly connected to the outlet of the residue tank is further arranged on the outlet at the bottom of the rectifying kettle, and a second stop valve is arranged on the first branch.

Furthermore, a second branch which is directly connected to the inlet of the residual liquid tank is also arranged on the outlet at the bottom of the rectifying kettle, and a third stop valve is arranged on the second branch.

Further, the cooler carries out cooling heat exchange through a cold water pipe, and an outlet of the cold water pipe passes through the inside of the residual liquid tank.

Specifically, the bottom outlet of the product tank is connected to a product pump.

Specifically, a return pipe is connected between an outlet of the gas-liquid separator and the top of the rectifying tower.

The technical scheme of the utility model has the beneficial effects that:

the rectifying tower kettle system can continuously separate heavy components, so that the trouble of stopping the rectifying tower is avoided, and the time and energy waste are saved.

Drawings

FIG. 1 is a piping diagram of a rectifying column still system according to an embodiment;

fig. 2 is a partially enlarged view of a position a in fig. 1.

The figures in the drawings represent:

11-a raw material tank, 12-a raw material pump, 13-a rectifying still, 14-a rectifying tower, 15-a condenser, 16-a gas-liquid separator, 17-a finished product tank, 18-a finished product pump and 19-a return pipe;

21-cooler, 22-residual liquid tank, 23-first branch, 24-second branch, 25-first stop valve, 26-second stop valve, 27-third stop valve and 28-cold water pipe.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example (b):

as shown in FIG. 1 and FIG. 2, the rectifying column still system of the present invention comprises a raw material tank 11, a raw material pump 12 for pumping the raw material from the bottom of the raw material tank 11, a rectifying still 13 connected to the outlet of the raw material pump 12, a rectifying column 14 connected to the rectifying still 13, a condenser 15 located at the upper outlet of the rectifying column 14, a gas-liquid separator 16 located at the outlet of the condenser 15, and a finished product tank 17 located at the end of the liquid outlet of the gas-liquid separator 16, wherein the bottom outlet of the rectifying still 13 is connected to a cooler 21, the outlet of the cooler 21 is connected to a residual liquid tank 22, the bottom outlet of the rectifying still 13 is further provided with a first branch 23 directly connected to the outlet of the residual liquid tank 22 and a second branch 24 directly connected to the inlet of the residual liquid tank 22, a first stop valve 25 is arranged on the pipeline between the bottom outlet of the rectifying still 13 and the cooler 21, the first branch 23 is provided with a second stop valve 26, a third stop valve 27 is provided on the second branch 24. During operation, feed pump 12 takes out the raw materials from raw materials groove 11 and sends rectifying still 13 to, rectifying still 13 can let the interior raw materials of cauldron up evaporate through steam heating or electric heat, then with light heavy component separation in rectifying tower 14, wherein light component is condensed when through condenser 15, then get into finished product groove 17, the heavy component gets back to in rectifying still 13, after the separation is accomplished, the heavy component can directly be cooled off through cooler 21, then arrange in raffinate groove 22, raffinate groove 22 can continue to discharge the heavy component and handle, and feed pump 12 can continue to supply the raw materials for rectifying still 13, do not influence rectifying tower 14 work. The rectifying tower kettle system can continuously separate heavy components, so that the trouble of stopping the rectifying tower is avoided, and the time and energy waste are saved. Finally, the heavy fraction can optionally be discharged directly from the first branch 23 for disposal or can be passed through the second branch 23 without cooling and directly stored in the raffinate tank 22. In normal operation, the first stop valve 25 is opened, and the second stop valve 26 and the third stop valve 27 are closed; when the first branch passage 23 is selected, the first stop valve 25 and the third stop valve 27 are closed, and the second stop valve 26 is opened; when the second branch passage 24 is selected, the first and second cutoff valves 25 and 26 are closed, and the third cutoff valve 27 is opened.

As shown in fig. 2, the cooler 21 performs cooling heat exchange through a cold water pipe 28, and an outlet of the cold water pipe 28 passes through the inside of the residual liquid tank 22. In this case, the raffinate tank 22 itself also acts as a cooler, and further heat exchange is carried out by means of the same cold water pipe 28.

As shown in fig. 1, the bottom outlet of the product tank 17 is connected to a product pump 18. A product pump 18 may pump product from the product tank 17 for further processing or packaging.

As shown in fig. 1, a return pipe 19 is connected between the outlet of the gas-liquid separator 16 and the top of the rectifying tower 14. The reflux pipe 19 is capable of partially refluxing the light components to participate in the distillation at the top of the rectifying column 14.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a can separate rectifying column cauldron system of heavy ends in succession, includes the raw materials groove, follows the raw materials pump, the connection of material tank bottom material pump, the rectifying column of raw materials pump export, connect in rectifying column on the rectifying column, be located the condenser of rectifying column upper portion export, be located the gas-liquid separator of condenser export and being located the terminal finished product groove of liquid outlet of gas-liquid separator, its characterized in that: the bottom outlet of the rectifying kettle is connected with a cooler, the outlet of the cooler is connected with a residual liquid tank, and a first stop valve is arranged on a pipeline between the bottom outlet of the rectifying kettle and the cooler.

2. The rectifier tank system capable of continuously separating heavy components according to claim 1, wherein: and a first branch which is directly connected to the outlet of the residue tank is also arranged on the outlet at the bottom of the rectifying kettle, and a second stop valve is arranged on the first branch.

3. The rectifier tank system capable of continuously separating heavy components according to claim 2, wherein: and a second branch which is directly connected to the inlet of the residue tank is also arranged on the outlet at the bottom of the rectifying kettle, and a third stop valve is arranged on the second branch.

4. A rectifier tank system capable of continuously separating heavy components according to any one of claims 1 to 3, characterized in that: the cooler carries out cooling heat exchange through a cold water pipe, and an outlet of the cold water pipe passes through the inside of the residual liquid tank.

5. The rectifier tank system capable of continuously separating heavy components according to claim 1, wherein: the bottom outlet of the product tank is connected to a product pump.

6. The rectifier tank system capable of continuously separating heavy components according to claim 1, wherein: and a return pipe is connected between the outlet of the gas-liquid separator and the top of the rectifying tower.