CN213667986U

CN213667986U - Trimethyl orthoacetate rectifying tower cooling device

Info

Publication number: CN213667986U
Application number: CN202022508628.6U
Authority: CN
Inventors: 田峰; 郭亮; 张军
Original assignee: Fushun Shunte Chemical Co ltd
Current assignee: Fushun Shunte Chemical Co ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-07-13
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a trimethyl orthoacetate rectifying column cooling device, including the rectifying column, the bottom of rectifying column is provided with the support, support and rectifying column fixed connection, and the bottom of support is provided with the slipmat, and the bottom center department of rectifying column has seted up the discharge gate, is provided with the valve on the discharge gate, and the surface of rectifying column is provided with condenser tube and freezing brine pipe, condenser tube and freezing brine pipe with rectifying column fixed connection. This trimethyl orthoacetate rectifying column cooling device, be provided with two sections cooling tubes, the cooling water condensation through the cooling tube lower half section carries out the primary cooling, freezing salt solution condensation of rethread upper half section further reduces the temperature, make the separation effect better, thereby trimethyl orthoacetate content has been improved, and the separation time also shortens, and the production efficiency is improved, be provided with the spoiler, thereby delay the velocity of water in condenser tube and the freezing salt solution pipe, increase the flow time of rivers in the cooling tube, thereby fully cool down.

Description

Trimethyl orthoacetate rectifying tower cooling device

Technical Field

The utility model relates to a cooling device technical field specifically is a trimethyl orthoacetate rectifying column cooling device.

Background

Trimethyl orthoacetate (english name trimethoroacetate) is also known as 1,1,1-Trimethoxyethane (1, 1,1-trimethoxy-Ethane, 1,1, 1-Trimethoxyethane). The liquid is colorless and transparent liquid with pleasant smell at normal pressure and temperature, is insoluble in water, and is soluble in organic solvents such as ethanol and diethyl ether. The molecular formula is C5H12O3, and the structural formula is CH3C (OCH3) 3. The main application is the organic intermediate for synthesizing medicines and pesticides.

A rectifying tower is needed for producing trimethyl orthoacetate, but the existing rectifying tower has poor cooling effect, large energy consumption and much heat loss, so that the quality of trimethyl orthoacetate is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a trimethyl orthoacetate rectifying column cooling device to it is not good to provide present rectifying column cooling effect in solving above-mentioned background art, and consumes energy greatly, and the heat scatters and disappears much, leads to the poor problem of trimethyl orthoacetate quality.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a trimethyl orthoacetate rectifying column cooling device, includes the rectifying column, the bottom of rectifying column is provided with the support, the support with rectifying column fixed connection, just the bottom of support is provided with the slipmat, the bottom center department of rectifying column has seted up the discharge gate, be provided with the valve on the discharge gate, the surface of rectifying column is provided with condenser tube and freezing brine pipe, condenser tube and freezing brine pipe with rectifying column fixed connection, just the top center department of rectifying column is provided with the motor, the feed inlet has been seted up in the left side of motor, the right side of motor is provided with heat recovery case, steam outlet has been seted up to the upper right side of rectifying column.

Preferably, the cooling water pipe is arranged at the lower part of the rectifying tower, a cooling water inlet is formed in the left end of the cooling water pipe, a cooling water pipe outlet is formed in the right end of the cooling water pipe, a flow valve is arranged at the cooling water inlet, and a spoiler is arranged on the cooling water pipe.

Preferably, the freezing brine pipe is arranged at the upper part of the rectifying tower, a freezing brine inlet is arranged at the left end of the freezing brine pipe, a freezing brine outlet is arranged at the right end of the freezing brine pipe, a flow valve is also arranged at the freezing brine inlet, and a spoiler is arranged on the freezing brine pipe.

Preferably, the bottom of the heat recovery box is provided with a supporting plate, the left side of the bottom of the supporting plate is connected with the steam outlet, the steam outlet penetrates through the supporting plate, the right side of the supporting plate is fixedly connected with a supporting column, and the bottom of the supporting column is provided with a fastening bolt.

Preferably, the heat recovery case is bilayer structure, and its inside packing has the heat preservation cotton, the inside of heat recovery case is provided with the water pipe, the water pipe is arranged inside the heat recovery case for helical structure, just the one end of water pipe is provided with the delivery port, the other end of water pipe is provided with the water inlet, the gas outlet has been seted up to the right side top of heat recovery case, install the filter screen in the gas outlet, just the filter screen is the ethanol filter screen.

Preferably, the pivot of motor extends to the internal connection of rectifying column has the rotation axis, the bottom of rotation axis is provided with the puddler, puddler and rotation axis fixed connection, just the inside wall bottom of rectifying column is provided with the auxiliary rod, the auxiliary rod with the puddler is crisscross to be set up.

Compared with the prior art, the beneficial effects of the utility model are that: the trimethyl orthoacetate rectifying tower cooling device is provided with two sections of cooling pipes, the cooling water in the lower half section of the cooling pipes is condensed to carry out primary cooling, and then the temperature is further reduced through the condensation of the frozen brine in the upper half section, so that the separation effect is better, thereby improving the content of trimethyl orthoacetate, shortening the separation time, improving the production efficiency, being provided with a spoiler, thereby delaying the water flow speed in the cooling water pipe and the freezing brine pipe, increasing the flowing time of the water flow in the cooling pipe, thereby fully cooling, the stirring rod is arranged, the auxiliary rod is arranged in the rectifying tower, the raw materials are more fully mixed in the rectifying tower through the stirring action of the auxiliary rod and the stirring rod, and through stirring, the raw materials are convenient to rectify, and the heat recovery box is arranged, so that the redundant heat generated by the rectifying tower can be utilized, cold water is heated, and the utilization rate of resources is improved.

Drawings

FIG. 1 is a schematic structural view of a trimethyl orthoacetate rectifying tower cooling device of the present invention;

FIG. 2 is a schematic view of the internal structure of a trimethyl orthoacetate rectification tower cooling device of the present invention;

FIG. 3 is a schematic view of the internal structure of a heat recovery box of a trimethyl orthoacetate rectifying tower cooling device of the present invention.

In the figure: 1. rectifying column, 2, support, 3, non-slip mat, 4, discharge gate, 5, valve, 6, cooling water inlet, 7, cooling water pipe, 8, cooling water outlet, 9, spoiler, 10, flow valve, 11, frozen brine inlet, 12, frozen brine pipe, 13, frozen brine outlet, 14, feed inlet, 15, motor, 16, steam outlet, 17, heat recovery box, 18, support column, 19, fastening bolt, 20, support plate, 21, gas outlet, 22, water outlet, 23, water inlet, 24, rotating shaft, 25, auxiliary rod, 26, stirring rod, 27, water pipe, 28, heat preservation cotton, 29, filter screen.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a trimethyl orthoacetate rectifying tower cooling device comprises a rectifying tower 1, a support 2 is arranged at the bottom of the rectifying tower 1, the support 2 is fixedly connected with the rectifying tower 1, an anti-slip pad 3 is arranged at the bottom of the support 2, a discharge port 4 is formed in the center of the bottom of the rectifying tower 1, a valve 5 is arranged on the discharge port 4, a cooling water pipe 7 and a freezing brine pipe 12 are arranged on the surface of the rectifying tower 1, the cooling water pipe 7 and the freezing brine pipe 12 are fixedly connected with the rectifying tower 1, a motor 15 is arranged at the center of the upper portion of the rectifying tower 1, a feed port 14 is formed in the left side of the motor 15, a heat recovery box 17 is arranged on the right side of the motor 15, a steam outlet 16 is formed in the upper right portion of the rectifying tower 1, the cooling water pipe 7 is arranged at the lower portion of the rectifying tower 1, a cooling water inlet 6 is formed in the left end of the cooling water pipe 7, a cooling, the flow valve 10 is arranged at the cooling water inlet 6, the spoiler 9 is arranged on the cooling water pipe 7, the freezing brine pipe 12 is arranged at the upper part of the rectifying tower 1, the freezing brine inlet 11 is arranged at the left end of the freezing brine pipe 12, the freezing brine outlet 13 is arranged at the right end of the freezing brine pipe 12, two sections of cooling pipes are arranged, the cooling water at the lower half section of the cooling pipe is condensed to carry out preliminary cooling, and then the temperature is further reduced by the condensation of the freezing brine at the upper half section, so that the separation effect is better, the trimethyl orthoacetate content is improved, the separation time is also shortened, the production efficiency is improved, the flow valve 10 is also arranged at the freezing brine inlet 11, the water flow in the cooling pipe can be controlled through the flow valve 10, the cooling speed is convenient to control, the spoiler 9 is arranged on the freezing brine pipe 12, and the spoiler 9 can delay the water flow speeds in the cooling water pipe 7, increase the flow time of water flow in the cooling pipe, thereby fully cooling, the bottom of the heat recovery box 17 is provided with a support plate 20, the left side of the bottom of the support plate 20 is connected with a steam outlet 16, the steam outlet 16 penetrates through the support plate 20, the right side of the support plate 20 is fixedly connected with a support column 18, the bottom of the support column 18 is provided with a fastening bolt 19, the heat recovery box 17 is of a double-layer structure, the heat insulation cotton 28 is filled in the heat recovery box 17 to play a role in heat insulation, a water pipe 27 is arranged in the heat recovery box 17, the water pipe 27 is arranged in the heat recovery box 17 in a spiral structure, the contact area between the water pipe 27 and steam is increased, thereby better absorbing heat, one end of the water pipe 27 is provided with a water outlet 22, the other end of the water pipe 27 is provided with a water inlet 23, an air outlet 21 is arranged above the right, heating cold water, the utilization ratio of resource is improved, install filter screen 29 in the gas outlet 21, and filter screen 29 is the ethanol filter screen, trimethyl orthoacetate dissolves in the ethanol, filter screen 29 with ethanol can filter trimethyl orthoacetate in the steam, prevent it and leak, the internal connection that the pivot of motor 15 extends to rectifying column 1 has rotation axis 24, the bottom of rotation axis 24 is provided with puddler 26, puddler 26 and rotation axis 24 fixed connection, and rectifying column 1's inside wall bottom is provided with auxiliary rod 25, auxiliary rod 25 sets up with puddler 26 is crisscross, stirring effect through auxiliary rod 25 and puddler 26 makes the raw materials more abundant of mixing in rectifying column 1, and through the stirring, make the raw materials be convenient for the rectification.

The working principle is as follows: when the trimethyl orthoacetate rectifying tower cooling device is used, firstly, raw materials are put into the rectifying tower 1 from the feed inlet 14, the motor 15 is started to drive the stirring rod 26 to stir the raw materials, then cooling water and frozen salt water flow into the cooling water pipe 7 and the frozen salt water pipe 12 respectively, so that the cooling water pipe 7 and the frozen salt water pipe 12 cool the interior of the rectifying tower 1, the flow rate of water flow in the cooling pipe can be controlled through the flow valve at the inlet of the cooling pipe, thereby fully cooling, the water inlet 23 of the water pipe 27 is connected with a cold water source, redundant steam in the rectifying tower 1 can be discharged from the steam outlet 16, the heat in the steam can be absorbed through the water pipe 27 in the heat recovery box 17, thereby heating the water in the water pipe 27, and improving the utilization rate of resources, the ethanol filter screen 29 is arranged at the air outlet 21, trimethyl orthoacetate is dissolved in ethanol, the filter screen 29 with ethanol can filter trimethyl orthoacetate in steam, prevent leakage of trimethyl orthoacetate, increase safety, and finally open the valve 5, discharge and collect the rectified raw material from the discharge port 4, which is the working principle of the trimethyl orthoacetate rectifying tower cooling device.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a trimethyl orthoacetate rectifying column cooling device, includes rectifying column (1), its characterized in that: a support (2) is arranged at the bottom of the rectifying tower (1), the support (2) is fixedly connected with the rectifying tower (1), the bottom of the bracket (2) is provided with an antiskid pad (3), the center of the bottom of the rectifying tower (1) is provided with a discharge hole (4), a valve (5) is arranged on the discharge hole (4), a cooling water pipe (7) and a frozen brine pipe (12) are arranged on the surface of the rectifying tower (1), the cooling water pipe (7) and the frozen brine pipe (12) are fixedly connected with the rectifying tower (1), a motor (15) is arranged at the center of the upper part of the rectifying tower (1), a feed inlet (14) is arranged at the left side of the motor (15), the right side of the motor (15) is provided with a heat recovery box (17), and the right upper part of the rectifying tower (1) is provided with a steam outlet (16).

2. The trimethyl orthoacetate rectification tower cooling device of claim 1, wherein: the cooling water pipe (7) is arranged on the lower portion of the rectifying tower (1), the left end of the cooling water pipe (7) is provided with a cooling water inlet (6), the right end of the cooling water pipe (7) is provided with a cooling water pipe outlet (8), a flow valve (10) is arranged at the cooling water inlet (6), and a spoiler (9) is arranged on the cooling water pipe (7).

3. The trimethyl orthoacetate rectification tower cooling device of claim 1, wherein: freezing brine pipe (12) set up the upper portion of rectifying column (1), the left end of freezing brine pipe (12) is provided with freezing brine import (11), the right-hand member of freezing brine pipe (12) is provided with freezing brine export (13), just freezing brine import (11) department also is provided with flow valve (10), be provided with spoiler (9) on freezing brine pipe (12).

4. The trimethyl orthoacetate rectification tower cooling device of claim 1, wherein: the bottom of heat recovery case (17) is provided with backup pad (20), the bottom left side of backup pad (20) with steam outlet (16) are connected, just steam outlet (16) run through backup pad (20), the right side fixedly connected with support column (18) of backup pad (20), the bottom of support column (18) is provided with fastening bolt (19).

5. The trimethyl orthoacetate rectification tower cooling device of claim 1, wherein: heat recovery case (17) is bilayer structure, and its inside packing has heat preservation cotton (28), the inside of heat recovery case (17) is provided with water pipe (27), water pipe (27) are arranged inside heat recovery case (17) for helical structure, just the one end of water pipe (27) is provided with delivery port (22), the other end of water pipe (27) is provided with water inlet (23), gas outlet (21) have been seted up to the right side top of heat recovery case (17), install filter screen (29) in gas outlet (21), just filter screen (29) are the ethanol filter screen.

6. The trimethyl orthoacetate rectification tower cooling device of claim 1, wherein: the pivot of motor (15) extends to the internal connection of rectifying column (1) has rotation axis (24), the bottom of rotation axis (24) is provided with puddler (26), puddler (26) and rotation axis (24) fixed connection, just the inside wall bottom of rectifying column (1) is provided with auxiliary rod (25), auxiliary rod (25) with puddler (26) set up in the crisscross-over.