CN215841690U

CN215841690U - Chemical efficient energy-saving rectifying tower

Info

Publication number: CN215841690U
Application number: CN202122182032.6U
Authority: CN
Inventors: 谢志锋; 王刚; 梁馨茹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-18
Anticipated expiration: 2031-09-09

Abstract

The utility model provides a chemical efficient energy-saving rectifying tower which comprises a tower body, wherein a discharging reflux section, an upper filler section, a liquid redistribution section, a lower filler section, a feeding section, a stripping filler section and a tower kettle are sequentially arranged in the tower body from top to bottom; a plurality of separation balls are arranged in the stripping packing section, the lower packing section and the upper packing section, through holes are uniformly distributed on the separation balls, a liquid redistributor is fixedly connected between each section in the tower body, meshes are uniformly distributed on the liquid redistributor, a liquid collector is arranged in the liquid redistributing section, an outer heat exchanger is arranged on the outer wall of the liquid redistributing section, an outer heat exchanger feeding pipe and an outer heat exchanger discharging pipe are fixedly connected to the upper end and the lower end of the outer wall of the outer heat exchanger respectively, and the other ends of the outer heat exchanger feeding pipe and the outer heat exchanger discharging pipe are fixedly connected to the inside of the tower body; the bottom of tower body is provided with the evacuation mouth, and the outer wall of tower body still is provided with the feed inlet.

Description

Chemical efficient energy-saving rectifying tower

Technical Field

The utility model relates to the technical field of rectifying towers, in particular to a chemical efficient energy-saving rectifying tower.

Background

The rectifying tower is a tower-type gas-liquid contact device for rectification, and utilizes the property that each component in the mixture has different volatility, namely the vapor pressure of each component is different at the same temperature, so that the light component in the liquid phase is transferred into the gas phase, and the heavy component in the gas phase is transferred into the liquid phase, thereby realizing the purpose of separation.

For example, publication numbers are: the patent of CN112337126A, including the rectifying column main part, the rectifying column main part is provided with a rectifying chamber, the left and right sides of the rectifying chamber are both fixedly provided with a column plate, one end of the column plate far away from the rectifying chamber is fixedly provided with an overflow weir, the left and right sides of the rectifying chamber are both fixedly provided with an electric push rod positioned at the bottom of the column plate, and a piston rod of the electric push rod is fixedly provided with a fixed block; but the separation structure of the device is simpler, the gas-liquid contact is insufficient, and the separation efficiency is reduced; therefore, a chemical efficient energy-saving rectifying tower is provided.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present invention provide a chemical efficient energy-saving rectifying tower, so as to solve or alleviate the technical problems in the prior art, and provide at least one useful choice.

The technical scheme of the embodiment of the utility model is realized as follows: the device comprises a tower body, wherein a discharging reflux section, an upper filler section, a liquid redistribution section, a lower filler section, a feeding section, a stripping filler section and a tower kettle are sequentially arranged inside the tower body from top to bottom; the inside of stripping filler section, lower filler section, last filler section all is provided with a plurality of separator balls, fixedly connected with liquid redistributor between every section of the inside tower body, be provided with the liquid trap in the liquid redistributing section.

In some embodiments, the outer wall of the liquid redistribution section is provided with an outer heat exchanger, an outer heat exchanger feed pipe and an outer heat exchanger discharge pipe are fixedly connected to the upper end and the lower end of the outer heat exchanger outer wall respectively, and the other ends of the outer heat exchanger feed pipe and the outer heat exchanger discharge pipe are fixedly connected to the inside of the tower body.

In some embodiments, the bottom of the tower body is provided with an evacuation port, and the outer wall of the tower body is further provided with a feed inlet.

In some embodiments, the bottom of the outer wall of the tower body is provided with a steam inlet, and the other end of the steam inlet is provided with a reboiler.

In some embodiments, a discharge hole is formed in the top end of the tower body, a condenser is arranged at one end of the discharge hole, a product outlet is formed in the condenser, the reflux end of the condenser is connected with a tower top reflux feed inlet, and the tower top reflux feed inlet penetrates through the tower body and is fixed on the outer wall of the tower body.

In some embodiments, a condensation plate is fixedly connected to the top end of the inner wall of the tower body, and the condensation plate is of a concave structure.

In some embodiments, the separation ball is provided with uniformly distributed through holes; the liquid redistributor is provided with meshes which are uniformly distributed.

In some embodiments, the top and the bottom of the outer heat exchanger are respectively provided with a cooling water inlet and a cooling water outlet, a plurality of condensation pipes are connected between the cooling water inlet and the cooling water outlet, and a plurality of inclined plates are uniformly distributed on two sides of the inner wall of the outer heat exchanger.

In some embodiments, the upper surface of the swash plate is provided with a wave protrusion.

Due to the adoption of the technical scheme, the embodiment of the utility model has the following advantages:

1. the utility model provides an energy-efficient rectifying column of chemical industry, the separation ball makes simple structure become porous complex structure, is favorable to the gas-liquid contact in the rectification, has improved separation efficiency greatly, and the top of tower body makes the gas condensation, and the heat in the gas gives off to the atmosphere through the tower body top, and the drop of water that the gas condensation formed passes through the condensing plate and collects.

2. The chemical efficient energy-saving rectifying tower has the advantages that the liquid redistribution section can greatly reduce the height of the rectifying tower, namely, the material stroke is reduced, so that the energy consumption required by the rectifying tower is reduced, and the energy-saving effect is achieved; the liquid redistribution section enlarges the operation space of the rectifying tower, and the existence of the temperature difference ensures that the gas-liquid substance exchange of the rectifying tower in the space is more sufficient and the ascending gas flow and the descending liquid flow are purer because the temperature of the redistributed liquid is lower than the gas-liquid equilibrium temperature of a theoretical plate.

3. A chemical high-efficiency energy-saving rectifying tower, a liquid redistribution segment can compensate the hidden trouble of wall flow existing in the upper segment of packing, and the wall flow is avoided to reduce the effect of gas-liquid material and heat exchange; even if the upper packing section generates wall flow, the liquid redistribution section is eliminated, so that the performance of the rectifying tower is further ensured.

4. A chemical high-efficiency energy-saving rectifying tower, liquid in a discharge pipe of an outer heat exchanger creates new conditions for gas-liquid exchange, more heavy components can be pressed, and the purity of light components of ascending gas flow is higher; therefore, the number of the required tower plates of the whole tower is greatly reduced, and the height of the tower is reduced, so that the separation efficiency is greatly improved, and the efficient separation effect is achieved.

5. The other end of the emptying port is connected with a filtering device, so that sewage can be filtered, the discharged sewage reaches a discharge standard, the pollution to water resources is avoided, the inclined plate enables materials to enter an external heat exchanger, the internal flow rate is reduced, the heat exchange time is prolonged, and the heat exchange effect is improved; the upper surface of swash plate is provided with the wave arch, slows down the velocity of flow of liquid more.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments or technical descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the interior of FIG. 1;

FIG. 3 is a detailed view of the liquid redistributor of FIG. 2;

FIG. 4 is a detail view of the separator bowl of FIG. 2;

FIG. 5 is an enlarged view of B in FIG. 2;

FIG. 6 is an enlarged view of A in FIG. 2;

fig. 7 is an internal sectional view of the external heat exchanger of fig. 1.

Reference numerals: 1-tower body, 2-feed inlet, 3-outer heat exchanger discharge pipe, 4-outer heat exchanger, 5-outer heat exchanger feed pipe, 6-top reflux feed inlet, 7-discharge outlet, 8-evacuation port, 9-steam inlet, 10-tower kettle, 11-stripping filler section, 12-feed section, 13-lower filler section, 14-upper filler section, 15-discharge reflux section, 16-liquid redistribution section, 17-liquid redistributor, 18-separation ball, 19-mesh, 20-through hole, 21-condensation plate, 22-liquid collector, 23-condensation pipe, 24-cooling water inlet, 25-inclined plate and 26-cooling water outlet.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

as shown in fig. 1-6, a chemical efficient energy-saving rectifying tower comprises a tower body 1, wherein the tower body 1 is internally provided with a discharge reflux section 15, an upper packing section 14, a liquid redistribution section 16, a lower packing section 13, a feeding section 12, a stripping packing section 11 and a tower kettle 10 from top to bottom; a plurality of separation balls 18 are arranged in the stripping packing section 11, the lower packing section 13 and the upper packing section 14, through holes 20 are uniformly distributed on the separation balls 18, the separation balls 18 change a simple structure into a porous complex structure, gas-liquid contact in rectification is facilitated, and separation efficiency is greatly improved; a liquid redistributor 17 is fixedly connected between each section in the tower body 1, meshes 19 which are uniformly distributed are arranged on the liquid redistributor 17, a condensing plate 21 is fixedly connected to the top end of the inner wall of the tower body 1, the condensing plate 21 is of a concave structure, gas is condensed at the top of the tower body 1, heat in the gas is dissipated to the atmosphere through the top of the tower body 1, water drops formed by gas condensation are collected through the condensing plate 21, when the condensing plate 21 is fully stored, liquid flows downwards and contacts with the gas, and molecular exchange is carried out in the contact process due to different temperatures; the liquid redistribution section 16 can greatly reduce the height of the tower, namely, the material stroke is reduced, so that the energy consumption required by the rectifying tower is reduced, and the energy-saving effect is achieved; the liquid redistribution section 16 enlarges the operation space of the rectifying tower, and because the temperature of the redistributed liquid is lower than the gas-liquid equilibrium temperature of a theoretical plate, the gas-liquid matter exchange of the rectifying tower in the space is more sufficient due to the temperature difference, and the ascending gas flow and the descending liquid flow are purer; the liquid redistribution section 16 can compensate the hidden trouble of wall flow existing in the upper section of the filler, and the wall flow is avoided, so that the effect of gas-liquid material and heat exchange is reduced; a liquid collector 22 is arranged in the liquid redistribution section 16, and the liquid collector 22 in the liquid redistribution section 16 collects liquid and is uniformly distributed through a liquid redistributor 17; even if the upper packing section 14 produces a wall flow, the liquid redistribution section 16 is eliminated, thereby further ensuring the performance of the rectification column.

In this embodiment, for better separation efficiency, the outer wall of the liquid redistribution segment 16 is provided with an outer heat exchanger 4, the upper end and the lower end of the outer wall of the outer heat exchanger 4 are respectively and fixedly connected with an outer heat exchanger feed pipe 5 and an outer heat exchanger discharge pipe 3, the other ends of the outer heat exchanger feed pipe 5 and the outer heat exchanger discharge pipe 3 are fixedly connected inside the tower body 1, and the liquid in the outer heat exchanger discharge pipe 3 creates new conditions for gas-liquid exchange, so that more heavy components can be pressed down, and the purity of the light components of the ascending gas flow is higher; therefore, the number of the required tower plates of the whole tower is greatly reduced, and the height of the tower is reduced, so that the separation efficiency is greatly improved, and the efficient separation effect is achieved.

In this embodiment, when the rectifying tower is cleaned, in order to discharge sewage, the bottom of the tower body 1 is provided with a drain port 8, and the other end of the drain port 8 is connected with a filtering device, so that sewage can be filtered, the discharged sewage reaches a discharge standard, and pollution to water resources is avoided; a steam inlet 9 is formed in the bottom of the outer wall of the tower body 1, a reboiler is arranged at the other end of the steam inlet 9, and the reboiler is used for heating liquid in a tower kettle 10 to generate gas; the outer wall of the tower body 1 is also provided with a feeding hole 2, and materials are uniformly distributed through a liquid redistributor 17 after entering the tower body 1, so that gas and liquid are fully contacted, and the separation effect is improved; the top of tower body 1 is provided with discharge gate 7, the one end of discharge gate 7 is provided with the condenser, is provided with the product outlet on the condenser, and the return end of condenser is connected with top of the tower backward flow feed inlet 6, top of the tower backward flow feed inlet 6 runs through the outer wall that is fixed in tower body 1 behind the tower body 1.

The working principle is as follows: the reboiler is connected with a steam inlet 9, steam generated by the reboiler enters the tower kettle 10 through the steam inlet 9 to heat liquid in the tower kettle 10, hot gas generated by heating moves upwards to the top end, the gas is condensed at the top of the tower body 1, heat in the gas is dissipated to the atmosphere through the top of the tower body 1, water drops formed by gas condensation are collected through a condensing plate 21, when the condensing plate 21 is fully stored, the liquid flows downwards, meanwhile, liquid flowing back from the tower top reflux feed inlet 6 also flows downwards, the liquid is uniformly distributed in the upper filler section 14 after passing through a liquid redistributor 17, and descending liquid is fully contacted with ascending gas through separating balls 18 in the upper filler section 14; liquid continuously descends, is collected by the liquid collector 22 and enters the outer heat exchanger 4 for cooling, then returns to the interior of the tower body 1 from the discharge pipe 3 of the outer heat exchanger, is uniformly distributed to the lower filler section 13 by the liquid redistributor 17, and then is separated by contacting the liquid with gas through the separating ball 18; the material entering the tower body 1 from the feed inlet 2 is uniformly distributed by the liquid redistributor 17 and then flows into the stripping packing section 11, and the separation balls 18 in the stripping packing section 11 make the descending liquid fully contact with the ascending gas, so that the separation efficiency is improved; when the interior of the tower body 1 is cleaned and drained, the other end of the emptying port 8 is connected with a filtering device for filtering and draining.

Example 2:

in order to make the liquid reflux temperature in the outer heat exchanger 4 reach the set temperature, as shown in fig. 7, the present embodiment makes the following improvements on the basis of embodiment 1: the top and the bottom of the outer heat exchanger 4 are respectively provided with a cooling water inlet 24 and a cooling water outlet 26, a plurality of condensing pipes 23 are connected between the cooling water inlet 24 and the cooling water outlet 26, a plurality of inclined plates 25 are uniformly distributed on two sides of the inner wall of the outer heat exchanger 4, the inclined plates 25 slow down the flow rate of materials entering the outer heat exchanger 4, the heat exchange time is prolonged, and the heat exchange effect is improved; the upper surface of the sloping plate 25 is provided with wave bulges, so that the flow speed of liquid is slowed down.

The working principle is as follows: cooling water gets into from cooling water entry 24, and cooling water export 26 is discharged, and the material gets into from outer heat exchanger inlet pipe 5, and outer heat exchanger discharging pipe 3 is discharged, and swash plate 25 makes the material slow down at the inside velocity of flow of outer heat exchanger 4, and the wave on swash plate 25 surface is protruding further slows down the velocity of flow of material, has improved the heat transfer effect.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a chemical industry energy-efficient rectifying column, includes tower body (1), its characterized in that: the tower body (1) is internally provided with a discharge reflux section (15), an upper packing section (14), a liquid redistribution section (16), a lower packing section (13), a feeding section (12), a stripping packing section (11) and a tower kettle (10) from top to bottom in sequence; stripping filler section (11), lower filler section (13), go up inside a plurality of separation balls (18) that all are provided with of filler section (14), fixedly connected with liquid redistributor (17) between every section of tower body (1) inside, be provided with liquid trap (22) in liquid redistributing section (16).

2. The chemical efficient energy-saving rectifying tower as claimed in claim 1, wherein: the outer wall of liquid redistribution section (16) is provided with outer heat exchanger (4), and the upper end and the lower extreme of outer heat exchanger (4) outer wall are fixedly connected with outer heat exchanger inlet pipe (5) and outer heat exchanger discharging pipe (3) respectively, and the other end fixed connection of outer heat exchanger inlet pipe (5) and outer heat exchanger discharging pipe (3) is in the inside of tower body (1).

3. The chemical efficient energy-saving rectifying tower as claimed in claim 1, wherein: the bottom of tower body (1) is provided with evacuation mouth (8), the outer wall of tower body (1) still is provided with feed inlet (2).

4. The chemical efficient energy-saving rectifying tower as claimed in claim 1, wherein: the tower is characterized in that a steam inlet (9) is formed in the bottom of the outer wall of the tower body (1), and a reboiler is arranged at the other end of the steam inlet (9).

5. The chemical efficient energy-saving rectifying tower as claimed in claim 1, wherein: the top of tower body (1) is provided with discharge gate (7), the one end of discharge gate (7) is provided with the condenser, is provided with the product outlet on the condenser, and the reflux end of condenser is connected with top of the tower backward flow feed inlet (6), top of the tower backward flow feed inlet (6) run through the outer wall that is fixed in tower body (1) behind tower body (1).

6. The chemical efficient energy-saving rectifying tower as claimed in claim 1, wherein: the inner wall top fixedly connected with condensing panel (21) of tower body (1), condensing panel (21) are the concave surface structure.

7. The chemical efficient energy-saving rectifying tower as claimed in claim 1, wherein: through holes (20) are uniformly distributed on the separating ball (18); the liquid redistributor (17) is provided with uniformly distributed meshes (19).

8. The chemical efficient energy-saving rectifying tower as claimed in claim 2, wherein: the top and the bottom of outer heat exchanger (4) are provided with cooling water inlet (24) and cooling water outlet (26) respectively, are connected with a plurality of condenser pipes (23) between cooling water inlet (24) and cooling water outlet (26), the inner wall both sides evenly distributed of outer heat exchanger (4) has a plurality of swash plates (25).

9. The chemical efficient energy-saving rectifying tower as claimed in claim 8, wherein: the upper surface of the sloping plate (25) is provided with wave bulges.