CN211752573U

CN211752573U - Distillation tower for chemical production

Info

Publication number: CN211752573U
Application number: CN202020101252.4U
Authority: CN
Inventors: 李洪立
Original assignee: Wuqiao Liuhe Deli Chemical Co ltd
Current assignee: Wuqiao Liuhe Deli Chemical Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-27
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to the technical field of distillation towers, in particular to a distillation tower for chemical production; the separated gas phase substances can be condensed and collected, so that the occupied area is small and the device is more practical; the steam-water separation tower comprises a tower body, wherein a cavity is arranged inside the tower body, a liquid inlet is formed in the left end of the tower body, an exhaust pipe is arranged at the top end of the tower body, and a steam pipe is coiled at the bottom of the cavity; still include a liquid collecting cylinder, the cover is collected to the toper, a compressor, the condenser, the evaporimeter, the heat transfer case, communicating pipe and fluid-discharge tube, be provided with the heat transfer chamber in the heat transfer case, the left end of heat transfer case is provided with the feed liquor pipe, a liquid collecting cylinder is located tower body cavity inner upper portion, it is connected to be provided with the multiunit and props to collect fixed between liquid collecting cylinder and the cavity inner wall, be provided with the refrigerant in the condenser, the input of fluid-discharge tube passes a liquid collecting cylinder's bottom wall and stretches into to a liquid collecting cylinder in from a liquid collecting cylinder's bottom, the right-hand member wall that passes the tower body in the cavity is.

Description

Distillation tower for chemical production

Technical Field

The utility model relates to a technical field of distillation column especially relates to a distillation column for chemical production.

Background

As is well known, distillation is a method for separating homogeneous liquid mixtures, which separates components according to their differences in volatility (or boiling point) in solution, and a distillation column for chemical production is a device for distillation purification of liquid raw materials, which is widely used in the field of distillation columns; the existing distillation tower for chemical production comprises a tower body, wherein a cavity is arranged inside the tower body, a liquid inlet is formed in the left end of the tower body, an exhaust pipe is arranged at the top end of the tower body, and a steam pipe is coiled at the bottom of the cavity; when the existing distillation tower for chemical production is used, liquid is injected into a cavity through a liquid inlet pipe, high-temperature steam is introduced into a steam pipe to heat the liquid, so that components with lower boiling points in the liquid are heated and then vaporized, and the components are discharged through an exhaust pipe and then are liquefied and collected by external condensing equipment; present a distillation column for chemical production uses the discovery, heats the evaporation with liquid through steam pipe steam in, needs follow-up entering condensing equipment to liquefy and collects, and the condensing equipment that follow-up processing was equipped with has increased area, has increased the input cost, has certain use limitation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a can carry out the condensation with the gaseous phase thing of separating and collect, area is little, more practical a distillation column for chemical production.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the steam-water separation tower comprises a tower body, wherein a cavity is arranged inside the tower body, a liquid inlet is formed in the left end of the tower body, an exhaust pipe is arranged at the top end of the tower body, and a steam pipe is coiled at the bottom of the cavity; the condenser is arranged in the heat exchange cavity, the output end of the communicating pipe is communicated with the liquid inlet, the input end of the communicating pipe penetrates through the right end wall of the heat exchange box from the right end of the heat exchange box and extends into the heat exchange cavity, the liquid collecting cylinder is positioned at the upper part in a cavity of the tower body, a plurality of groups of connecting supports are fixedly arranged between the liquid collecting cylinder and the inner wall of the cavity, the conical collecting cover is fixedly arranged in the cavity, the bottom end of the conical collecting cover extends into the liquid collecting cylinder from the bottom end of the liquid collecting cylinder, and the evaporator is fixedly arranged in the conical collecting cover, the output of compressor with the input intercommunication of evaporimeter, the output of evaporimeter with the output intercommunication of condenser, the output of condenser is from the heat transfer intracavity pass the top wall of heat transfer case and with the input intercommunication of compressor, be provided with the refrigerant in the condenser, the bottom wall of collecting liquid cylinder is passed and is stretched into to the collecting liquid cylinder in the bottom of collecting liquid cylinder to the input of fluid-discharge tube, the right-hand member wall that passes the tower body in the cavity is worn out from the right-hand member of tower body to the output of fluid-discharge tube, be provided with the flowing back valve on the fluid-discharge tube.

Preferably, the middle part of the cavity is provided with a flow guiding throat pipe.

Preferably, the top of the cavity is provided with a corrugated filler layer.

Preferably, the right end of the tower body is provided with a liquid level pipe, and the input end and the output end of the liquid level pipe are communicated with the bottom of the cavity.

Preferably, the steam pipe is provided with a plurality of groups of uniformly distributed fins.

Preferably, the bottom of the right end of the tower body is provided with an emptying pipe, the input end of the emptying pipe penetrates through the right end wall of the tower body from the right end of the tower body and extends into the tower body, and an emptying valve is arranged on the emptying pipe.

(III) advantageous effects

Compared with the prior art, the utility model provides a distillation column for chemical production possesses following beneficial effect: the distillation tower for chemical production is characterized in that liquid is injected into a heat exchange box through a liquid inlet pipe, a compressor is started to compress a refrigerant and then the refrigerant is pressurized and injected into a condenser, the refrigerant is liquefied and releases heat, so that the heat is transferred to the liquid in the heat exchange box, the liquid is preheated, the preheated liquid enters the bottom in a cavity, high-temperature steam is introduced into a steam pipe to heat the liquid at the bottom in the cavity, components with lower boiling points in the liquid are heated and then vaporized, the vaporized liquid rises into a conical collection cover under the action of hot air flow, the liquid refrigerant enters the condenser to be vaporized at the moment, the liquid refrigerant absorbs heat, so that the heat around the condenser is absorbed, the temperature in the conical collection cover is reduced, a vapor with higher temperature is in contact with the bottom end wall of the conical collection cover, and the vapor is liquefied when meeting cold due to the lower temperature at the conical collection cover, the liquid after liquefaction drips into in the collection liquid section of thick bamboo, discharges through the fluid-discharge tube, can condense the gas phase thing of separating and collect, and area is little, and is more practical.

Drawings

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

FIG. 2 is a schematic view of the steam pipe structure of the present invention;

FIG. 3 is a schematic view of the position relationship between the liquid collecting cylinder and the conical collecting cover of the present invention;

FIG. 4 is a schematic view of the connection structure of the liquid collecting cylinder and the inner wall of the tower body;

FIG. 5 is a schematic view of the structure of the flow guiding throat pipe of the present invention;

in the drawings, the reference numbers: 1. a tower body; 2. a cavity; 3. a liquid inlet; 4. an exhaust pipe; 5. a steam pipe; 6. a liquid collection cylinder; 7. a conical collection hood; 8. a compressor; 9. a condenser; 10. an evaporator; 11. a heat exchange box; 12. a communicating pipe; 13. a liquid discharge pipe; 14. a liquid inlet pipe; 15. connecting a support; 16. a drain valve; 17. a flow guiding throat pipe; 18. a corrugated packing layer; 19. a liquid level tube; 20. a fin; 21. an emptying pipe; 22. and (4) an emptying valve.

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. 1-5, the distillation tower for chemical production of the present invention comprises a tower body 1, a cavity 2 is disposed inside the tower body 1, a liquid inlet 3 is disposed at the left end of the tower body 1, an exhaust pipe 4 is disposed at the top end of the tower body 1, and a steam pipe 5 is coiled at the bottom of the cavity 2; the device also comprises a liquid collecting cylinder 6, a conical collecting cover 7, a compressor 8, a condenser 9, an evaporator 10, a heat exchange box 11, a communicating pipe 12 and a liquid discharge pipe 13, wherein a heat exchange cavity is arranged in the heat exchange box 11, the condenser 9 is arranged in the heat exchange cavity, the output end of the communicating pipe 12 is communicated with a liquid inlet 3, the input end of the communicating pipe 12 penetrates through the right end wall of the heat exchange box 11 from the right end of the heat exchange box 11 and extends into the heat exchange cavity, a liquid inlet pipe 14 is arranged at the left end of the heat exchange box 11, the output end of the liquid inlet pipe 14 penetrates through the left end wall of the heat exchange box 11 from the left end of the heat exchange box 11 and extends into the heat exchange cavity, the liquid collecting cylinder 6 is positioned at the upper part in the cavity 2 of the tower body 1, a plurality of groups of connecting supports 15 are fixedly arranged between the liquid collecting cylinder 6 and the inner wall of the cavity 2, the conical collecting cover 7 is fixedly arranged, the output end of the compressor 8 is communicated with the input end of the evaporator 10, the output end of the evaporator 10 is communicated with the output end of the condenser 9, the output end of the condenser 9 penetrates through the top end wall of the heat exchange box 11 from the heat exchange cavity and is communicated with the input end of the compressor 8, a refrigerant is arranged in the condenser 9, the input end of the liquid discharge pipe 13 penetrates through the bottom end wall of the liquid collection cylinder 6 from the bottom end of the liquid collection cylinder 6 and extends into the liquid collection cylinder 6, the output end of the liquid discharge pipe 13 penetrates through the right end wall of the tower body 1 from the cavity 2 and penetrates out from the right end of the tower body 1, and a liquid discharge valve; liquid is injected into the heat exchange box 11 through the liquid inlet pipe 14, the compressor 8 is started, the compressor 8 compresses a refrigerant and then pressurizes and injects the refrigerant into the condenser 9, the refrigerant is liquefied and releases heat, so that the heat is transferred to the liquid in the heat exchange box 11, the liquid is preheated, the preheated liquid enters the bottom in the cavity 2, high-temperature steam is introduced into the steam pipe 5 to heat the liquid at the bottom in the cavity 2, components with lower boiling points in the liquid are heated and then vaporized, the vaporized liquid rises into the conical collection cover 7 under the action of hot air flow, at the moment, the liquid refrigerant enters the condenser 9 to be vaporized and absorbs heat, so that the heat around the condenser 9 is absorbed, the temperature in the conical collection cover 7 is reduced, and the vaporized matter with higher temperature is contacted with the bottom end wall of the conical collection cover 7, and the temperature at the conical collection cover 7 is lower, the boil-off meets cold liquefaction, and the liquid after the liquefaction drips into in liquid collection section of thick bamboo 6, discharges through fluid-discharge tube 13, can carry out the condensation with the gaseous phase thing of separating and collect, and area is little, and is more practical.

The utility model relates to a distillation tower used for chemical production, the middle part of a cavity 2 is provided with a flow guiding choke 17; through the arrangement of the flow guiding throat pipe 17, the evaporated gas phase substance can be guided, so that the gas phase substance moves upwards along the inner wall of the cavity 2 after passing through the flow guiding throat pipe 17, and the subsequent liquefaction and collection of the gas phase substance by the conical collection cover 7 are facilitated.

The utility model relates to a distillation tower used for chemical production, the top of a cavity 2 is provided with a corrugated packing layer 18; through the arrangement of the corrugated packing layer 18, part of non-liquefied gas phase substances can be liquefied under the action of the corrugated packing layer 18, and the liquefied liquid substances are dripped into the conical collecting cover 7.

The utility model relates to a distillation tower used for chemical production, the right end of a tower body 1 is provided with a liquid level pipe 19, and the input end and the output end of the liquid level pipe 19 are both communicated with the bottom of a cavity 2; through the setting of liquid level pipe 19, can more directly perceivedly clear understanding the liquid level of tower body 1 bottom, can in time discover and handle when the liquid level is lower or higher.

In the distillation tower for chemical production, the steam pipe 5 is provided with a plurality of groups of uniformly distributed fins 20; through the arrangement of a plurality of groups of fins 20, the heat dissipation area of the steam pipe 5 can be increased, and the heating of the liquid in the tower body 1 is accelerated.

The utility model discloses a distillation tower for chemical production, the bottom of the right end of a tower body 1 is provided with an emptying pipe 21, the input end of the emptying pipe 21 passes through the right end wall of the tower body 1 from the right end of the tower body 1 and extends into the tower body 1, and the emptying pipe 21 is provided with an emptying valve 22; the remaining liquid at the bottom of the column body 1 can be emptied by the arrangement of the emptying pipe 21.

When in use, liquid is injected into the heat exchange box 11 through the liquid inlet pipe 14, the compressor 8 is started, the compressor 8 compresses a refrigerant and then pressurizes and injects the refrigerant into the condenser 9, the refrigerant is liquefied to release heat, thereby transferring the heat to the liquid in the heat exchange box 11, preheating the liquid, the preheated liquid enters the bottom in the cavity 2, high-temperature steam is introduced into the steam pipe 5 to heat the liquid at the bottom in the cavity 2, so that the components with lower boiling points in the liquid are heated and vaporized, the vaporized liquid rises into the conical collection cover 7 under the action of hot air flow, at the moment, the liquid refrigerant enters the condenser 9 to be vaporized, the vaporization absorbs heat, thereby absorbing the heat around the condenser 9, reducing the temperature in the conical collection cover 7, enabling the vaporized substances with higher temperature to be in contact with the bottom end wall of the conical collection cover 7, and because the temperature at the conical collection cover 7 is lower, the vapor is liquefied when meeting cold, the liquefied liquid is dripped into the liquid collecting cylinder 6 and is discharged through the liquid discharge pipe 13, the separated gas phase can be condensed and collected, the occupied area is small, and the method is more practical; the guide throat 17 is arranged to guide the evaporated gas phase substance, so that the gas phase substance moves upwards along the inner wall of the cavity 2 after passing through the guide throat 17, and the subsequent liquefaction and collection of the gas phase substance by the conical collection cover 7 are facilitated; through the arrangement of the corrugated packing layer 18, part of non-liquefied gas phase substances can be liquefied under the action of the corrugated packing layer 18, and the liquefied liquid substances are dripped into the conical collecting cover 7; through the arrangement of the liquid level pipe 19, the liquid level at the bottom of the tower body 1 can be known more visually and clearly, and can be found and processed in time when the liquid level is lower or higher; through the arrangement of the plurality of groups of fins 20, the heat dissipation area of the steam pipe 5 can be increased, and the heating of the liquid in the tower body 1 is accelerated; the remaining liquid at the bottom of the column 1 can be emptied by means of the emptying pipe 21.

The utility model discloses a distillation column for chemical production, the compressor is bought to the compressor is connected through the use specification that purchases together and is bought.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

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. A distillation tower for chemical production comprises a tower body (1), wherein a cavity (2) is arranged inside the tower body (1), a liquid inlet (3) is formed in the left end of the tower body (1), an exhaust pipe (4) is arranged at the top end of the tower body (1), and a steam pipe (5) is coiled at the bottom of the cavity (2); the device is characterized by further comprising a liquid collecting cylinder (6), a conical collecting cover (7), a compressor (8), a condenser (9), an evaporator (10), a heat exchange box (11), a communicating pipe (12) and a liquid discharge pipe (13), wherein the heat exchange cavity is arranged in the heat exchange box (11), the condenser (9) is arranged in the heat exchange cavity, the output end of the communicating pipe (12) is communicated with the liquid inlet (3), the input end of the communicating pipe (12) penetrates through the right end wall of the heat exchange box (11) from the right end of the heat exchange box (11) and extends into the heat exchange cavity, the left end of the heat exchange box (11) is provided with a liquid inlet pipe (14), the output end of the liquid inlet pipe (14) penetrates through the left end wall of the heat exchange box (11) from the left end of the heat exchange box (11) and extends into the heat exchange cavity, the liquid collecting cylinder (6) is positioned at the upper part in the cavity (2) of the tower body (1), and a plurality of groups of connecting supports (15), the cone-shaped collecting cover (7) is fixedly arranged in the cavity (2), the bottom end of the cone-shaped collecting cover (7) extends into the liquid collecting cylinder (6) from the bottom end of the liquid collecting cylinder (6), the evaporator (10) is fixedly arranged in the cone-shaped collecting cover (7), the output end of the compressor (8) is communicated with the input end of the evaporator (10), the output end of the evaporator (10) is communicated with the output end of the condenser (9), the output end of the condenser (9) penetrates through the top end wall of the heat exchange box (11) from the heat exchange cavity and is communicated with the input end of the compressor (8), a refrigerant is arranged in the condenser (9), the input end of the liquid discharge pipe (13) penetrates through the bottom end wall of the liquid collecting cylinder (6) from the bottom end of the liquid collecting cylinder (6) and extends into the liquid collecting cylinder (6), the output end of the liquid discharge pipe (13) penetrates through the right end wall of the tower body (1) from the cavity (2) and penetrates out of the right end of the tower body, and a drain valve (16) is arranged on the drain pipe (13).

2. A distillation column for chemical production according to claim 1, wherein a flow guiding throat (17) is arranged in the middle of the cavity (2).

3. Distillation column for chemical production according to claim 2, characterised in that the top of the cavity (2) is provided with a corrugated packing layer (18).

4. A distillation column for chemical production according to claim 3, wherein a liquid level pipe (19) is arranged at the right end of the column body (1), and the input end and the output end of the liquid level pipe (19) are communicated with the bottom of the cavity (2).

5. A distillation column for chemical production according to claim 4, wherein the steam pipe (5) is provided with a plurality of groups of uniformly distributed fins (20).

6. A distillation tower for chemical production according to claim 5, wherein the bottom of the right end of the tower body (1) is provided with a vent pipe (21), the input end of the vent pipe (21) passes through the right end wall of the tower body (1) from the right end of the tower body (1) and extends into the tower body (1), and the vent pipe (21) is provided with a vent valve (22).