CN214130345U

CN214130345U - Rectifying tower for efavirenz intermediate production

Info

Publication number: CN214130345U
Application number: CN202022941234.XU
Authority: CN
Inventors: 吴德全
Original assignee: Yancheng Desano Pharmaceutical Co ltd
Current assignee: Yancheng Desano Pharmaceutical Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-07
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a rectifying tower for producing an efavirenz intermediate, which comprises a rectifying tower main body and an air tank, wherein one side of the rectifying tower main body is provided with a liquid inlet, the bottom of the rectifying tower main body is provided with a steam inlet, and the rectifying tower main body is communicated with the air tank; the rectifying tower comprises a rectifying tower body, and is characterized by further comprising a protective shell and two heaters, wherein the two heaters are arranged on two opposite sides of the inner wall of the protective shell, the rectifying tower body is located in the protective shell, and the two heaters are respectively located on two sides of the rectifying tower body. The rectifying tower for producing the efavirenz intermediate can enable the protective shell to become a heat-insulating layer, can effectively prevent heat in the rectifying tower main body from being dissipated, and saves energy consumption while improving the separation effect; the coking of the tower wall in the rectifying tower main body can be effectively avoided, and the rectifying effect of the rectifying tower main body is improved.

Description

Rectifying tower for efavirenz intermediate production

Technical Field

The utility model belongs to the field of chemical industry equipment, in particular to rectifying column is used in efavirenz midbody production.

Background

The rectifying tower is a common gas-liquid contact device in chemical equipment, can realize separation through different volatility of each component, and has two types of plate tower and packed tower, and the rectification is a distillation method for separating liquid mixture into high purity by utilizing reflux, and the rectifying tower is widely applied to liquid mixture separation operation in the industry, and is widely applied to departments of petroleum, chemical engineering, light industry, food, metallurgy and the like.

The rectifying tower for producing the efavirenz intermediate on the market is inconvenient to enable a protective shell to become a heat-insulating layer, so that heat loss in a rectifying tower main body cannot be prevented, the separation effect cannot be improved, energy is consumed too fast, coking of a tower wall in the rectifying tower main body is not convenient to prevent, and the rectifying effect of the rectifying tower main body is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rectifying column is used in efavirenz midbody production, can solve this rectifying column is used in efavirenz midbody production that proposes in the above-mentioned background art, just make the protecting crust become the heat preservation, lead to unable heat in preventing the rectifying column main part to scatter and disappear, when leading to unable improvement separation effect, make the too fast consumption of the energy, be not convenient for prevent the coking of the column wall in the rectifying column main part, lead to the rectifying column main part the rectification effect scheduling problem that worsens.

In order to achieve the above purpose, the solution of the present invention is:

a rectifying tower for producing an efavirenz intermediate comprises a rectifying tower main body and an air tank, wherein a liquid inlet is formed in one side of the rectifying tower main body, a steam inlet is formed in the bottom of the rectifying tower main body, and the rectifying tower main body is communicated with the air tank; the rectifying tower comprises a rectifying tower body, and is characterized by further comprising a protective shell and two heaters, wherein the two heaters are arranged on two opposite sides of the inner wall of the protective shell, the rectifying tower body is located in the protective shell, and the two heaters are respectively located on two sides of the rectifying tower body.

The communicating structure of the air tank and the rectifying tower main body is as follows: one end of the connecting pipe is penetrated through the top end of the air tank, the other end of the connecting pipe is connected with one end of the special-shaped pipe, and the other end of the special-shaped pipe is connected with the air suction pump; the output end of the air suction pump is connected to the rectifying tower main body through an air outlet pipe.

And the air outlet pipe is provided with a valve.

The protective shell is characterized by further comprising a supporting structure, the supporting structure is fixedly installed on the two sides of the protective shell, and the air tank is arranged on the supporting structure.

A flange is arranged at a steam inlet at the bottom of the rectifying tower main body, and the flange is provided with a fixing pipe for connecting a steam pipe.

The outer side of the rectifying tower body between the rectifying tower body and the second heater is adhered with a hot air pipe, the outer side of the bottom of the rectifying tower body is provided with a heat conducting pipe, and the two hot air pipes are communicated with the heat conducting pipe; the two hot air pipes are respectively communicated with the adjacent heaters through air ducts.

After the scheme is adopted, the utility model discloses compare prior art's beneficial effect is:

(1) the utility model has the advantages that the hot air pipe and the heat conducting pipe are arranged, the heater generates heat by starting the heater, the heat is transferred into the hot air pipe through the air duct and then is led into the heat conducting pipe from the hot air pipe, and the heat preservation can be carried out on the rectifying tower main body, so that the protective shell can become a heat preservation layer, the heat in the rectifying tower main body can be effectively prevented from being dissipated, the separation effect is improved, and the energy consumption is saved;

(2) the utility model discloses a be provided with the outlet duct, through starting the aspirator pump, can make connecting pipe and special-shaped pipe penetrate the air in the air tank in the outlet duct, and penetrate rectifying column main part in by the outlet duct, and then be convenient for penetrate rectifying column main part to the air in, thereby can effectively avoid the coking of the column wall in the rectifying column main part, the rectification effect of rectifying column main part has been improved, and simultaneously, through setting up the valve, can control the outlet duct, the air of being convenient for flows in the speed in the rectifying column main part, thereby can improve the quality of product, its simple structure easily operates, high work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic half-section view of the present invention;

FIG. 3 is a schematic structural view of a heater according to the present invention;

fig. 4 is an enlarged view of a in fig. 2.

Reference numerals:

1. a rectifying column main body; 2. a protective shell; 3. a liquid inlet;

4. a support structure; 5. a steam inlet; 6. an air tank;

7. a steam outlet; 8. a flange; 9. a fixed tube;

10. a heater; 11. a connecting pipe; 12. an air duct;

13. a hot gas pipe; 14. a heat conducting pipe; 15. a special-shaped pipe;

16. a getter pump; 17. an air outlet pipe; 18. and (4) a valve.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Example 1

Referring to fig. 1 to 4, in the present embodiment, a rectifying tower for efavirenz intermediate production includes a rectifying tower main body 1 and a supporting structure 4, a liquid inlet 3 is disposed on the left side of the rectifying tower main body 1, a steam inlet 5 is disposed at the lower end of the rectifying tower main body 1, an air tank 6 is disposed at the upper end of the supporting structure 4, a protective shell 2 is fixed inside the supporting structure 4, heaters 10 are disposed on both left and right side walls inside the protective shell 2, a connecting pipe 11 is fixedly mounted at the upper end of the air tank 6, a special-shaped pipe 15 is disposed at the left side of the connecting pipe 11, an air suction pump 16 is disposed at the lower end of the special-shaped pipe 15, wherein, bearing structure 4 can support protecting crust 2, prevents that protecting crust 2 from falling into ground, leads to causing the damage to rectifying column main part 1 to through the setting of air drum 6, can avoid the coking of the column wall in rectifying column main part 1.

Example 2

Referring to fig. 2 to 3, on the basis of embodiment 1, a steam outlet 7 is disposed at an upper end of a rectifying tower main body 1, a flange 8 is fixedly mounted at a lower end of a steam inlet 5, a fixed pipe 9 is disposed at a lower end of the flange 8, and the fixed pipe 9 is fixed at a lower end of the rectifying tower main body 1 through the flange 8; the left side fixed mounting of heater 10 has air duct 12, air duct 12 left side fixed mounting has hot trachea 13, the lower extreme fixedly connected with heat pipe 14 of hot trachea 13, and two sets of hot trachea 13 are linked together through heat pipe 14, two sets of heaters 10 are fixed on the inside left and right sides wall of protecting crust 2, and two sets of hot trachea 13 hug closely at the left and right sides lateral wall of rectifying column main part 1, and heat pipe 14 is located the bottom of rectifying column main part 1, wherein, through starting heater 10, make heater 10 produce the heat, and pass through air duct 12 and transmit to hot trachea 13 in, in leading-in heat pipe 14 from hot trachea 13 again, and then can keep warm to rectifying column main part 1, thereby can make protecting crust 2 become the heat preservation, can effectively prevent the heat in rectifying column main part 1 from scattering and disappearing, and when improving the separation effect, the consumption of the energy has also been practiced thrift.

Example 3

Referring to fig. 4, on the basis of

embodiments

1 and 2, an air outlet pipe 17 is installed on the left side of an air suction pump 16, a valve 18 is installed at the upper end of the air outlet pipe 17 in a penetrating manner, a rectifying tower main body 1 is communicated with an air tank 6 through the air outlet pipe 17, a special pipe 15 and a connecting pipe 11, the air suction pump 16 is fixedly installed at the upper end of a protective shell 2, the right side end of the air outlet pipe is located at the upper end of the air tank 6, and the air tank 6 is fixedly installed at the upper end of a supporting structure 4, wherein the air suction pump 16 is started, so that the connecting pipe 11 and the special pipe 15 can penetrate air in the air outlet pipe 17 and penetrate into the rectifying tower main body 1 through the air outlet pipe 17, and further facilitate the penetration of air into the rectifying tower main body 1, thereby effectively avoiding coking of the tower wall in the rectifying tower main body 1, improving the rectifying effect of the rectifying tower main body, and simultaneously, by arranging the valve 18, can control outlet duct 17, the speed of being convenient for air inflow in rectifying column main part 1 to can improve the quality of product, its simple structure easily operates, work efficiency is high.

The utility model discloses a theory of operation is:

the rectification tower for producing the efavirenz intermediate comprises the following steps that firstly, a fixed pipe 9 is connected with a steam pipe and is guided into a rectification tower main body 1 through a steam inlet 5; the heater 10 is started, the heater 10 generates heat, the heat is transferred into the hot air pipe 13 through the air guide pipe 12, and then the heat is guided into the heat conduction pipe 14 through the hot air pipe 13, so that the rectification tower body 1 can be insulated, the protective shell 2 can become an insulating layer, the heat in the rectification tower body 1 can be effectively prevented from being dissipated, the separation effect is improved, and meanwhile, the energy consumption is saved; then start aspirator pump 16, penetrate the outlet duct 17 through connecting pipe 11 and special pipe 15 with the air in the air tank 6 in, and penetrate rectifying column main part 1 by outlet duct 17 in, thereby can effectively avoid the coking of the column wall in rectifying column main part 1, the rectification effect of rectifying column main part has been improved, and simultaneously, through setting up valve 18, can control outlet duct 17, be convenient for the air flow in the speed in rectifying column main part 1, thereby can improve the quality of product, and finally, derive the steam in rectifying column main part 1 through steam outlet 7.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A rectifying tower for producing an efavirenz intermediate comprises a rectifying tower main body and an air tank, wherein a liquid inlet is formed in one side of the rectifying tower main body, a steam inlet is formed in the bottom of the rectifying tower main body, and the rectifying tower main body is communicated with the air tank; the method is characterized in that: the rectifying tower comprises a rectifying tower body, and is characterized by further comprising a protective shell and two heaters, wherein the two heaters are arranged on two opposite sides of the inner wall of the protective shell, the rectifying tower body is located in the protective shell, and the two heaters are respectively located on two sides of the rectifying tower body.

2. The rectifying column for efavirenz intermediate production as claimed in claim 1, characterized in that: the communicating structure of the air tank and the rectifying tower main body is as follows: one end of the connecting pipe is penetrated through the top end of the air tank, the other end of the connecting pipe is connected with one end of the special-shaped pipe, and the other end of the special-shaped pipe is connected with the air suction pump; the output end of the air suction pump is connected to the rectifying tower main body through an air outlet pipe.

3. The rectifying column for efavirenz intermediate production as claimed in claim 2, characterized in that: and a valve is arranged on the air outlet pipe.

4. The rectifying column for efavirenz intermediate production as claimed in claim 1, characterized in that: the protective shell is characterized by further comprising a supporting structure, the supporting structure is fixedly installed on the two sides of the protective shell, and the air tank is arranged on the supporting structure.

5. The rectifying column for efavirenz intermediate production as claimed in claim 1, characterized in that: a flange is arranged at a steam inlet at the bottom of the rectifying tower main body, and the flange is provided with a fixing pipe used for connecting a steam pipe.

6. The rectifying column for efavirenz intermediate production as claimed in claim 1, characterized in that: the outer side of the rectifying tower body between the rectifying tower body and the second heater is adhered with a hot air pipe, the outer side of the bottom of the rectifying tower body is provided with a heat conducting pipe, and the two hot air pipes are communicated with the heat conducting pipe; the two hot air pipes are respectively communicated with the adjacent heaters through air ducts.