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CN-224221355-U - High-purity ethyl acetate refining device

CN224221355UCN 224221355 UCN224221355 UCN 224221355UCN-224221355-U

Abstract

The utility model relates to the technical field of preparation of acetic acid ethanol, in particular to a high-purity ethyl acetate refining device, which comprises a base, wherein a preparation box is fixed on one side of the top of the base, a heating copper plate is fixed on the bottom of the base through screws, a cover plate is installed on the top of the preparation box, a stirring assembly is installed in the cover plate, a recovery pumping pipe is fixed on one side of a quantitative tank through a fixing rod, a piston rod assembly is connected to one end of the recovery pumping pipe in a sealing manner through threads, a three-way valve is installed at one end of the recovery pumping pipe, and one side of the three-way valve is communicated with the recovery pipe. According to the utility model, the chemical materials stored in the recovery pumping pipe are extruded into the original storage container through the recovery pipe by switching the outlet direction of the three-way valve, so that redundant chemical materials are recovered, the situation that laboratory personnel splashes when recovering the chemical materials is avoided, the personal safety of the laboratory personnel is ensured, and the pollution and loss of the chemical materials are reduced.

Inventors

  • TAO ZHIYONG
  • ZHANG XIAOLI
  • Tao Roujing
  • Xiang Qiuqin
  • YOU XIAOMIN

Assignees

  • 浙江腾宇新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20250606

Claims (8)

  1. 1. A high-purity ethyl acetate refining device comprises a base (1), and is characterized in that one side of the top of the base (1) is fixedly provided with a preparation box (3), the bottom of the base (1) is fixedly provided with a heating copper plate (2) through screws, the heating copper plate (2) is matched with the preparation box (3) for use, the top of the preparation box (3) is provided with a cover plate (6), the interior of the cover plate (6) is provided with a stirring assembly (5), the interior of the cover plate (6) is provided with a steam pipe (4), one side of the preparation box (3) is fixedly provided with a first fixing plate (8) and a second fixing plate (9), the interior of the first fixing plate (8) is fixedly provided with a plurality of injection pipes (7) at equal intervals, one side of the quantitative tank (14) is fixedly provided with a recovery suction pipe (10) through a fixing rod (19), one end of the recovery suction pipe (10) is connected with a component (11) through a thread seal, one end of the suction pipe (10) is fixedly provided with a three-way valve (18), one end of the recovery pipe (18) is communicated with one end of the recovery pipe (18), one end of the extraction pipe (21) extends into the bottom end inside the quantitative tank (14), a conveying pipe (16) is communicated with the bottom of the quantitative tank (14), a second valve (22) is installed inside the conveying pipe (16), and one end of the conveying pipe (16) is communicated with the inside of the preparation box (3).
  2. 2. The apparatus of claim 1, wherein the stirring unit (5) comprises a rotating rod (501), and the top end of the rotating rod (501) penetrates through the cover plate (6).
  3. 3. The high-purity ethyl acetate refining device according to claim 2, wherein a hand wheel (502) is welded at the top of the rotating rod (501), and a plurality of stirring rods (503) are fixed at equal intervals on the outer side of the rotating rod (501).
  4. 4. The high-purity ethyl acetate refining device according to claim 1, wherein the aperture at one end of the steam pipe (4) is gradually decreased, and the connection part of the steam pipe (4) and the cover plate (6) is sealed by a sealing ring.
  5. 5. The purification apparatus of high purity ethyl acetate according to claim 1, wherein an observation window (15) is provided in the quantitative tank (14), and transparent glass is provided in the observation window (15).
  6. 6. The purification apparatus of high purity ethyl acetate according to claim 1, wherein the injection pipe (7) is connected to the inside of the quantitative tank (14) through a communicating pipe (13), and a first valve (20) is installed inside the communicating pipe (13).
  7. 7. The high-purity ethyl acetate refining device according to claim 1, wherein a sealing sleeve (12) is arranged at the bottom of the cover plate (6), and the sealing sleeve (12) is in sealing connection with the inner wall of the preparation box (3).
  8. 8. The high-purity ethyl acetate refining device according to claim 2, wherein the rotating rod (501) is rotatably installed in the cover plate (6) through a rotating shaft, and the connection part of the rotating rod (501) and the cover plate (6) is sealed through a sealing ring.

Description

High-purity ethyl acetate refining device Technical Field The utility model relates to the technical field of preparation of acetic acid ethanol, in particular to a high-purity ethyl acetate refining device. Background Acetic acid ethanol is an ester compound formed by esterification reaction of acetic acid and ethanol, and is commonly called ‌ ethyl acetate. In the routine laboratory procedures for preparing ethyl acetate, the laboratory personnel typically need to perform a mixing reaction of multiple chemical reagents through multiple test tubes. Because the current operation method lacks an accurate quantitative control system, the ratio of the reaction materials is often misaligned. When the phenomenon of excessive reagent occurs, the operation specification requires that the excessive liquid reagent is refilled into the original storage container, and the process has obvious operation safety risks that the liquid reagent is easy to splash in the transferring process and possibly causes skin contact damage or respiratory tract irritation of experimenters, and the open type refilling operation can cause double problems of reagent pollution and volatilization loss. ‌ A Therefore, a high-purity ethyl acetate refining device is specially provided. Disclosure of utility model The utility model aims to provide a high-purity ethyl acetate refining device for solving the problems in the prior art, and the technical scheme is that the high-purity ethyl acetate refining device comprises a base, wherein a preparation box is fixed on one side of the top of the base, a heating copper plate is fixed on the bottom of the base through screws, the heating copper plate is matched with the preparation box for use, a cover plate is mounted on the top of the preparation box, a stirring assembly is mounted in the cover plate, a steam pipe is mounted in the cover plate, a first fixing plate and a second fixing plate are fixed on one side of the preparation box, a plurality of injection pipes are fixed in the first fixing plate at equal intervals, a plurality of quantitative tanks are fixed in the second fixing plate at equal intervals, a recovery pumping pipe is fixed on one side of the quantitative tanks through fixing rods, one end of the recovery pumping pipe is connected with a piston rod assembly through threads in a sealing mode, a three-way valve is mounted on one side of the recovery pipe, one end of the three-way valve is communicated with the pumping pipe, one end of the quantitative pumping pipe is connected with the bottom of the quantitative pumping pipe, one end of the quantitative pumping pipe is connected with the quantitative tank, one end of the quantitative pumping pipe is connected with the quantitative pipe, and the quantitative pipe is connected with the quantitative pipe through the quantitative pipe. Preferably, the stirring assembly comprises a rotating rod, and the top end of the rotating rod penetrates through the cover plate. Preferably, a hand wheel is welded at the top of the rotating rod, and a plurality of stirring rods are fixed at equal intervals on the outer side of the rotating rod. Preferably, the aperture of one end of the steam pipe is gradually decreased, and the connection part of the steam pipe and the cover plate is sealed by a sealing ring. Preferably, an observation window is opened in the quantitative tank, and transparent glass is installed in the observation window. Preferably, the injection pipe is communicated with the inside of the quantitative tank through a communicating pipe, and a first valve is installed in the communicating pipe. Preferably, a sealing sleeve is arranged at the bottom of the cover plate, and the sealing sleeve is in sealing connection with the inner wall of the preparation box. Preferably, the rotating rod is rotatably arranged in the cover plate through a rotating shaft, and the connecting part of the rotating rod and the cover plate is sealed through a sealing ring. Compared with the prior art, the utility model provides a high-purity ethyl acetate refining device, which has the following beneficial effects: The content of the chemical materials in the quantitative tank can be observed through the observation window formed in one side of the quantitative tank, so that the first control quantity is carried out on the materials, when the content of the chemical materials in the quantitative tank is found to be too much, the piston rod assembly is pulled to drive the chemical materials in the quantitative tank to be extracted into the recovery extraction pipe through the extraction pipe, so that the content of the chemical materials in the quantitative tank is accurately controlled, the chemical materials stored in the recovery extraction pipe can be extracted into the original storage container through converting the outlet direction of the three-way valve, the chemical materials stored in the recovery extraction pipe are extruded into the original stor