CN219231445U - Purifying and rectifying device - Google Patents

Abstract

The utility model discloses a purifying and rectifying device, which comprises a rectifying tower; the central position of the top end of the rectifying tower is provided with a rectifying bottle, one side of the top end of the rectifying bottle is provided with a water removing bottle, the other side of the top end of the rectifying bottle is provided with a circulating cooler, one end of the circulating cooler is provided with a cooling shell, the inside of the cooling shell is provided with a heat conducting block, and the central position of the inside of the heat conducting block is provided with a collecting bottle; according to the utility model, the structure of the water removal bottle, the color-changing silica gel, the blocking plate and the air holes is adopted, the water removal bottle is arranged at the position of the steam outlet, then the butterfly valve is opened to guide heated and evaporated water vapor into the water removal bottle, and then the steam is contacted with the color-changing silica gel through the air holes, and meanwhile the color-changing silica gel absorbs the water vapor, so that the situation that the color-changing silica gel is required to be added into tetrachloroethylene and personnel are required to filter and take out the color-changing silica gel in the later period is avoided, personnel are prevented from being injured by tetrachloroethylene, and meanwhile, the working strength of the personnel is reduced, so that the working efficiency of the personnel is increased.

Description

Purifying and rectifying device

Technical Field

The utility model relates to the technical field of tetrachloroethylene purification and rectification, in particular to a purification and rectification device.

Background

The rectification and purification device is a tower type vapor-liquid contact device for rectification, 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 separation purpose.

The utility model of the purifying method of tetrachloroethylene with the patent number 201811423903.5 comprises the following steps: rectifying tetrachloroethylene in a rectifying device, and collecting tetrachloroethylene fraction at 122 ℃; and adding the allochroic silicagel into the collected tetrachloroethylene for a preset time, and removing the allochroic silicagel to obtain the purified tetrachloroethylene. According to the method disclosed by the utility model, moisture and other impurities in the commercially available analytically pure tetrachloroethylene can be effectively removed, and the purified tetrachloroethylene can meet the use requirements of tetrachloroethylene for an infrared light spectrometry, but the method has the defects to a certain extent that:

after the purification and rectification of the tetrachloroethylene are finished, the color-changing silica gel is added into the collecting bottle to absorb redundant water in the rectified tetrachloroethylene, so that the purity of the tetrachloroethylene is ensured, the variable-speed silica gel in the tetrachloroethylene is required to be taken out after the water in the tetrachloroethylene is absorbed by the color-changing silica gel, the color-changing silica gel and the tetrachloroethylene are required to be separated by the running of filtration in the process of taking out, and the tetrachloroethylene which is being filtered is easy to splash in the process of separating personnel, and the tetrachloroethylene has toxicity, so that the personnel is easy to be injured in the process of filtration, and the working strength of the personnel is increased by filtration, so that the working efficiency of the personnel is lower;

when tetrachloroethylene is heated to a boiling point through a rectifying device and is cooled and liquefied, and when tetrachloroethylene gas enters a circulation cooler for cooling and liquefying, part of tetrachloroethylene gas cannot be cooled and liquefied due to the fact that the gas is shorter between the gas and cold air in the circulation cooler, the gas which is uncooled enters a collecting bottle under the extrusion of the gas tetrachloroethylene at the rear, and the gas tetrachloroethylene is accumulated in the collecting bottle to a certain extent to cause the increase of the internal air pressure of the collecting bottle, so that the gas tetrachloroethylene is caused to flow back into the rectifying bottle, and the rectifying effect of the tetrachloroethylene is poor.

Disclosure of Invention

The present utility model is directed to a purifying and rectifying device, which solves the above-mentioned problems in the prior art.

The utility model provides the following technical scheme: a purifying and rectifying device comprises a rectifying tower; the central position of the top end of the rectifying tower is provided with a rectifying bottle, one side of the top end of the rectifying bottle is provided with a water removing bottle, the other side of the top end of the rectifying bottle is provided with a circulating cooler, one end of the circulating cooler is provided with a cooling shell, the inside of the cooling shell is provided with a heat conducting block, and the central position of the inside of the heat conducting block is provided with a collecting bottle;

the inside bottom of the dewatering bottle is provided with color-changing silica gel, the inside top of the dewatering bottle is provided with a blocking plate, and the surface of the blocking plate is provided with ventilation holes at equal intervals;

the cooling device is characterized in that a cold water cavity is formed in the center of the inside of the cooling shell, radiating fins are arranged on the side face of the surface of the heat conducting block at equal intervals, the same radiating fins are arranged at the bottom end of the heat conducting block, and the radiating fins are located in the cold water cavity.

Preferably, a liquid inlet is arranged at the center of the top end of the surface of the rectifying bottle, steam outlets are arranged on two sides of the top end of the surface of the rectifying bottle, and butterfly valves are arranged on the surface of the steam outlets.

Preferably, the top of the water removal bottle is connected with one group of steam outlets, one end of the circulating cooler is connected with the other group of steam outlets, one side of the surface of the circulating cooler is provided with a cooling liquid inlet, the opposite position of the surface of the circulating cooler is provided with a cooling liquid outlet, and the other end of the circulating cooler is connected with the collecting bottle.

Preferably, a cold water inlet is arranged at one side of the bottom end of the cooling shell, a cold water outlet is arranged at the position, opposite to the cold water inlet, of the top end of the side surface of the cooling shell, and the cold water outlet is connected with the cooling liquid inlet.

Preferably, a sealing ring is arranged on the side surface of the top end of the heat conducting block, a sealing groove is arranged on the inner side surface of the cooling shell, which is located at the corresponding position of the sealing ring, and the same sealing groove is arranged on the side surface of the heat conducting block, which is located at the corresponding position of the sealing ring.

Preferably, the top end of the inner side surface of the heat conducting block is provided with a locking bolt, the inner side surface of the cooling shell is provided with a locking groove at a position corresponding to the locking bolt, and the locking bolt penetrates through the heat conducting block to extend into the locking groove and is fixedly installed through a thread structure.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the structure of the water removal bottle, the allochroic silica gel, the blocking plate and the air holes is adopted, so that gasified water vapor is absorbed, the water removal bottle is arranged at the position of the vapor outlet, then the butterfly valve is opened to guide the heated and evaporated water vapor into the water removal bottle, then the vapor contacts the allochroic silica gel through the air holes, and meanwhile, the allochroic silica gel absorbs the water vapor, so that the situation that the allochroic silica gel is required to be added into tetrachloroethylene and personnel is required to filter and take out the allochroic silica gel in the later period is avoided, the personnel is prevented from being injured by tetrachloroethylene, the working strength of the personnel is reduced, and the working efficiency of the personnel is increased.

2. The utility model adopts the structure of the cooling shell, the cold water cavity, the heat conducting block and the radiating fin to realize cooling and liquefying of the tetrachloroethylene gas in the collecting bottle, after cold water enters the cold water cavity, the heat conducting block firstly absorbs heat released by natural cooling of the gas in the collecting bottle, then the heat is transferred to the radiating fin in the cold water cavity through transfer, and the heat on the surface of the radiating fin is absorbed through the cold water, and along with the reduction of the heat, the heat conducting block continuously absorbs the heat in the collecting bottle, so that the reflux of the tetrachloroethylene gas caused by the increase of the air pressure in the collecting bottle is avoided, and the purifying and rectifying effect of the tetrachloroethylene is improved.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a partial cross-sectional view of the cooling enclosure of FIG. 1 in accordance with the present utility model;

FIG. 3 is an enlarged schematic view of FIG. 1A in accordance with the present utility model;

fig. 4 is an enlarged schematic view of B of fig. 2 in accordance with the present utility model.

In the figure: 1. a rectifying tower; 2. a rectifying bottle; 201. a liquid inlet; 202. a steam outlet; 203. a butterfly valve; 3. a circulation cooler; 301. a cooling liquid inlet; 302. a cooling liquid outlet; 4. cooling the housing; 401. a cold water inlet; 402. a cold water outlet; 403. a cold water cavity; 404. a locking groove; 405. sealing grooves; 5. removing water bottles; 501. color-changing silica gel; 502. a blocking plate; 503. ventilation holes; 6. a heat conduction block; 601. a heat sink; 602. a seal ring; 603. a locking bolt; 7. and (5) collecting the bottle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The technical scheme of the utility model is further elaborated below by referring to the drawings in the specification and the specific embodiments.

Embodiment one:

the purifying and rectifying device comprises a rectifying tower 1; a rectifying bottle 2 is arranged at the central position of the top end of the rectifying tower 1, a water removal bottle 5 is arranged on one side of the top end of the rectifying bottle 2, a circulating cooler 3 is arranged on the other side of the top end of the rectifying bottle 2, a cooling shell 4 is arranged at one end of the circulating cooler 3, a heat conducting block 6 is arranged in the cooling shell 4, and a collecting bottle 7 is arranged at the central position of the heat conducting block 6;

the color-changing silica gel 501 is arranged at the inner bottom end of the water removal bottle 5, the blocking plate 502 is arranged at the inner top end of the water removal bottle 5, and the air holes 503 are formed in the surface of the blocking plate 502 at equal intervals;

specifically, as shown in fig. 1 and 3, when tetrachloroethylene is purified and rectified, the rectifying bottle 2 filled with tetrachloroethylene is firstly placed at the top end of the rectifying tower 1, then the water removal bottle 5 is connected with a group of steam outlets 202 at the top end of the rectifying bottle 2, then the rectifying bottle 2 is heated in the rectifying tower 1, when the rectifying bottle 2 is heated to a certain temperature, water in the rectifying bottle 2 is firstly evaporated to form steam, then the steam upwards enters the water removal bottle 5 through the steam outlets 202, then the steam is contacted with the allochroic silica gel 501 through the air holes 503, and meanwhile the allochroic silica gel 501 absorbs the steam, so that the need of adding the allochroic silica gel 501 into the tetrachloroethylene and filtering by personnel in the later period is avoided, the personnel is prevented from being hurt by the tetrachloroethylene, the working strength of the personnel is reduced, and the working efficiency of the personnel is increased.

Further, a liquid inlet 201 is arranged at the center of the top end of the surface of the rectifying bottle 2, steam outlets 202 are arranged on two sides of the top end of the surface of the rectifying bottle 2, and a butterfly valve 203 is arranged on the surface of the steam outlet 202; the top end of the water removal bottle 5 is connected with one group of steam outlets 202, one end of the circulating cooler 3 is connected with the other group of steam outlets 202, one side of the surface of the circulating cooler 3 is provided with a cooling liquid inlet 301, the opposite position of the surface of the circulating cooler 3 is provided with a cooling liquid outlet 302, and the other end of the circulating cooler 3 is connected with the collecting bottle 7;

specifically, as shown in fig. 1 and 3, in the process of filling tetrachloroethylene into the interior of the rectifying flask 2 through the liquid inlet 201, firstly, the butterfly valve 203 connected to the surface of the vapor outlet 202 on one side of the water removal flask 5 is opened to feed water vapor into the water removal flask 5 for absorption, then after water removal is completed, the butterfly valve 203 is closed, meanwhile, the butterfly valve 203 connected to the circulation cooler 3 is opened, then the tetrachloroethylene in the interior of the rectifying flask 2 is evaporated to form gas into the interior of the circulation cooler 3, and then cold water flows to the cooling liquid outlet 302 through the cooling liquid inlet 301, so that the gas tetrachloroethylene is cooled and liquefied in the interior of the circulation cooler 3, and then the cooled and liquefied tetrachloroethylene enters the interior of the collecting flask 7 for collection.

Unlike the first embodiment, the present utility model also provides a second embodiment, which is used for solving the problem that when the tetrachloroethylene is heated to a boiling point by a rectifying device and is cooled and liquefied, and when the tetrachloroethylene gas enters into a circulation cooler for cooling and liquefying, part of the tetrachloroethylene gas cannot be cooled and liquefied due to the fact that the gas is short between the gas and cold air in the circulation cooler, the uncooled gas tetrachloroethylene enters into a collecting bottle under the extrusion of the gas tetrachloroethylene at the rear, and when the gas tetrachloroethylene is accumulated in the collecting bottle to a certain extent, the gas pressure in the collecting bottle is increased, and then the gas tetrachloroethylene is caused to flow back into the rectifying bottle, so that the effect of rectifying the tetrachloroethylene is poor; a cold water inlet 401 is formed in one side of the bottom end of the cooling shell 4, a cold water outlet 402 is formed in the position, opposite to the cold water inlet 401, of the top end of the side surface of the cooling shell 4, and the cold water outlet 402 is connected with the cooling liquid inlet 301; a sealing ring 602 is arranged on the side surface of the top end of the heat conducting block 6, a sealing groove 405 is arranged on the inner side surface of the cooling shell 4 at the position corresponding to the sealing ring 602, and the same sealing groove 405 is arranged on the side surface of the heat conducting block 6 at the position corresponding to the sealing ring 602; the top end of the inner side surface of the heat conducting block 6 is provided with a locking bolt 603, the inner side surface of the cooling shell 4 is provided with a locking groove 404 at a position corresponding to the locking bolt 603, and the locking bolt 603 penetrates through the heat conducting block 6 to extend into the locking groove 404 and is fixedly installed through a thread structure;

specifically, as shown in fig. 1, 2 and 4, the heat conducting block 6 is installed at the central position inside the cooling shell 4, then the locking bolt 603 penetrates through the heat conducting block 6 and extends to the inside of the locking groove 404 to be fixedly installed through a threaded structure, meanwhile, the heat radiating fin 601 at the surface and the bottom end of the heat conducting block 6 is located inside the cold water cavity 403, then cold water enters the inside of the cold water cavity 403 through the cold water inlet 401, then is discharged through the cold water outlet 402 and enters the inside of the circulating cooler 3, when the cold water passes through the inside of the cold water cavity 403, the sealing ring 602 located inside the sealing groove 405 prevents liquid leakage, after the cold water enters the inside of the cold water cavity 403, firstly the heat conducting block 6 absorbs heat released by natural cooling of the gas inside the collecting bottle 7, then transfers the heat to the heat radiating fin 601 through transfer, and absorbs the heat on the surface of the heat radiating fin 601 through the cold water, and as the heat is reduced, the heat conducting block 6 continues to absorb the heat inside the collecting bottle 7, so that the gas tetrachloroethylene is prevented from flowing back due to an increase of the air pressure inside the collecting bottle 7, and thus the rectification effect of the tetrachloroethylene is improved.

Working principle: when the vacuum flask is used, the vacuum flask 5 is firstly fixed at one end of the steam outlet 202, then when the vacuum flask is heated by the rectifying tower 1, firstly evaporated water vapor enters the vacuum flask 5 to be absorbed by the color-changing silica gel 501, after the water absorption treatment is finished, the rectifying tower 1 is continuously heated, tetrachloroethylene in the rectifying flask 2 is evaporated into gas, then the tetrachloroethylene of the gas is cooled and liquefied, in the process of the tetrachloroethylene liquefaction, the tetrachloroethylene of the gas entering the collecting flask 7 is absorbed by the heat conducting block 6, then the absorbed heat is transferred to the cooling fins 601 in the cold water cavity 403 to be cooled, and then the heat conducting block 6 is continuously used for absorbing the heat in the collecting flask 7.

Finally, what is to be described is: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (6)

1. A purifying and rectifying device comprises a rectifying tower (1); the method is characterized in that: the utility model discloses a rectifying tower, which is characterized in that a rectifying bottle (2) is arranged at the central position of the top end of the rectifying tower (1), a water removal bottle (5) is arranged at one side of the top end of the rectifying bottle (2), a circulating cooler (3) is arranged at the other side of the top end of the rectifying bottle (2), a cooling shell (4) is arranged at one end of the circulating cooler (3), a heat conducting block (6) is arranged in the cooling shell (4), and a collecting bottle (7) is arranged at the central position of the heat conducting block (6);

the inside bottom of the dewatering bottle (5) is provided with allochroic silica gel (501), the inside top of the dewatering bottle (5) is provided with a blocking plate (502), and the surface of the blocking plate (502) is provided with ventilation holes (503) at equal intervals;

the cooling device is characterized in that a cold water cavity (403) is formed in the central position of the inside of the cooling shell (4), radiating fins (601) are arranged on the side face of the surface of the heat conducting block (6) at equal intervals, the same radiating fins (601) are arranged at the bottom end of the heat conducting block (6), and the radiating fins (601) are located in the cold water cavity (403).

2. The purifying and rectifying apparatus according to claim 1, characterized in that: the center position of the top end of the surface of the rectifying bottle (2) is provided with a liquid inlet (201), two sides of the top end of the surface of the rectifying bottle (2) are provided with steam outlets (202), and the surface of each steam outlet (202) is provided with a butterfly valve (203).

3. The purifying and rectifying apparatus according to claim 1, characterized in that: the top of dewatering bottle (5) and a set of steam outlet (202) interconnect, circulated cooler (3) one end and another steam outlet (202) interconnect, and surface one side of circulated cooler (3) is equipped with coolant liquid import (301), and the surface relative position of circulated cooler (3) is equipped with coolant liquid export (302), and the other end and the collecting bottle (7) interconnect of circulated cooler (3).

4. The purifying and rectifying apparatus according to claim 1, characterized in that: a cold water inlet (401) is formed in one side of the bottom end of the cooling shell (4), a cold water outlet (402) is formed in the position, opposite to the cold water inlet (401), of the top end of the side face of the cooling shell (4), and the cold water outlet (402) is connected with the cooling liquid inlet (301).

5. The purifying and rectifying apparatus according to claim 1, characterized in that: the top side of heat conduction piece (6) is equipped with sealing ring (602), and the inside side of cooling shell (4) is located sealing ring (602) and corresponds the position and be equipped with seal groove (405), and the side of heat conduction piece (6) is located sealing ring (602) and corresponds the position and be equipped with same seal groove (405).

6. The purifying and rectifying apparatus according to claim 1, characterized in that: the top of the inner side surface of the heat conducting block (6) is provided with a locking bolt (603), the inner side surface of the cooling shell (4) is provided with a locking groove (404) at a position corresponding to the locking bolt (603), and the locking bolt (603) penetrates through the heat conducting block (6) to extend into the locking groove (404) and is fixedly installed through a threaded structure.

Images