Tower top steam recovery structure of alcohol ether tower during water circulation

Abstract

The utility model relates to the technical field of steam cooling recovery, in particular to an alcohol ether tower top steam recovery structure during water circulation, which comprises a tower top cover, and a flange plate is fixedly connected to the bottom of the outer wall of the tower top cover; a cooling mechanism is arranged at the top of the tower top cover and is used for cooling steam; a cleaning mechanism is arranged in the tower top cover and is used for cleaning scale; the vortex-shaped heat dissipation shell is arranged at the top of the tower top cover and extends into the tower top cover, and the heat dissipation shell with a large heat transfer area is arranged in a relatively limited space, so that heat dissipated by steam in the tower top cover can be quickly dissipated from the inner side of the heat dissipation shell to the outer side of the tower top cover; and the cooling liquid connected from the water inlet pipe passes through the heat dissipation pipe and then is discharged from the water outlet pipe, so that the heat absorbed by the heat dissipation pipe can be quickly taken away when the cooling liquid flows through the heat dissipation pipe, and the cooling effect of the heat dissipation pipe is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steam cooling recovery technical field, concretely is a kind of alcohol ether column overhead steam recovery structure when water circulation. BACKGROUND

[0002] Alcohol ether column is the key equipment for alcohol ether class material separation, purification in chemical production, and alcohol ether column is mainly based on rectification principle work.Different components in mixture have different volatility, under heating condition, volatile component (light component) is more easily converted from liquid phase to gas phase, and difficult volatile component (heavy component) is more retained in liquid phase.Through multiple gas-liquid equilibrium and mass transfer process, light component is gradually enriched at tower top, heavy component is gradually enriched at tower bottom, so as to realize the separation of alcohol ether mixture, usually water is used as circulating coolant, absorbs heat from steam system and discharges to atmosphere to reduce water temperature device;When collecting and condensing steam generated by cooling tower again, calcium and salt substances in steam adhere to the inner wall of pipeline, corrode the pipeline and reduce the service life of the pipeline.

[0003] Prior art such as publication number CN219607836U provides a descaling structure for cooling tower steam recovery, belonging to the technical field of cooling tower steam recovery cleaning, to solve the problem that calcium and salt substances in steam adhere to the inner wall of pipeline when collecting and condensing steam generated by cooling tower again, corrode the pipeline and reduce the service life of the pipeline.The second motor shell is rotated by the motor in the second motor shell, the threaded rod is moved by the threaded hole, the sliding block is moved by the connecting block and the sliding frame, the sliding frame is moved outside the second fixed shell, the support rod is moved by the sliding frame, the sliding frame is moved by the sliding frame, the sliding frame is moved in the second connecting pipe, the sliding frame is moved by the scraping wall ring, the scraping wall ring is scraped and cleaned on the inner wall of the second connecting pipe, so that there is no scale on the inner wall of the second connecting pipe, the scale does not corrode the inner wall of the second connecting pipe, and the service life of the second connecting pipe is increased.

[0004] This solution, through the installation of an exhaust assembly, a drive assembly, and a wall scraper assembly, achieves the goal of cleaning scale inside the second connecting pipe, preventing scale on the inner wall of the second connecting pipe from corroding it. This solves the problem of calcium and salt substances in the steam adhering to the inner wall of the pipe and corroding it, thus reducing the pipe's service life, during the collection and reuse of steam generated in the cooling tower. However, a large amount of steam is generated during the production process of the alcohol-ether tower. Scale mainly accumulates on the inner wall of the pipe due to calcium and salt substances carried by the liquefied steam during collection and reuse. This leads to concentrated scale accumulation in the main cooling section of the pipe. While the current solution uses a wall scraper assembly at the second connecting pipe before the steam enters the condenser for descaling, this is ineffective because it is not the main area of ​​steam liquefaction and scale formation, and it cannot clean the scale in the condenser area. Therefore, we propose a steam recovery structure at the top of the alcohol-ether tower during water circulation. Utility Model Content

[0005] The purpose of this invention is to provide a steam recovery structure for the top of an alcohol-ether tower during water circulation. This structure solves the problem that when steam generated by a cooling tower is collected and condensed for reuse, calcium and salt substances in the steam adhere to the inner wall of the pipe, causing corrosion and reducing the service life of the pipe.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vapor recovery structure for the top of an alcohol-ether tower during water circulation includes a tower top cover, wherein a flange is fixedly connected to the bottom of the outer wall of the tower top cover;

[0008] The top of the tower cover is equipped with a cooling mechanism for cooling steam;

[0009] The tower top cover is equipped with a cleaning mechanism for cleaning scale.

[0010] The cooling mechanism includes a heat dissipation shell, which is fixedly connected to the top of the tower cover and is vortex-shaped, extending into the interior of the tower cover. The heat dissipation shell is embedded in the vortex-shaped recess formed on the outer side of the tower cover, and heat dissipation pipes are embedded therein.

[0011] Preferably, the heat dissipation pipe is vortex-shaped, with an inlet pipe fixedly connected to one end of the heat dissipation pipe at the center of the vortex, and an outlet pipe fixedly connected to one end of the heat dissipation pipe at the edge of the vortex.

[0012] Preferably, a pressure gauge is connected to the top of the tower top cover to detect the pressure inside the tower top cover.

[0013] Preferably, the cleaning mechanism comprises a scraping ring arranged inside the tower top cover, and the scraping ring is in shape adaptation with the heat dissipation shell inside the tower top cover, and is in contact and sliding connection with the heat dissipation shell.

[0014] Preferably, the top of the tower top cover is fixedly connected with three groups of air cylinders, and the telescopic ends of the air cylinders extend to the inside of the tower top cover and are fixedly connected with the scraping ring through a connecting block.

[0015] Preferably, a filter plate is arranged below the scraping ring inside the tower top cover, and the filter plate is in a conical protruding shape.

[0016] Preferably, a collecting groove is fixedly connected to the edge of the bottom of the filter plate, the collecting groove is annular, and is fixedly connected with the inner wall of the tower top cover.

[0017] By the above technical scheme, the utility model provides a kind of alcohol ether column tower top steam recovery structure when water circulation. At least have the following beneficial effects:

[0018] I, the utility model discloses a vortex-shaped heat dissipation shell extending to the inside of the tower top cover is arranged on the top of the tower top cover, the heat dissipation shell with large heat transfer area is arranged in the relatively limited space, so that the heat of the steam emitted inside the tower top cover can be rapidly emitted from the heat dissipation shell inside the tower top cover to the outside, and rapidly absorbed by the heat dissipation pipe embedded in the recessed part of the heat dissipation shell outside, then the cooling liquid is introduced from the water inlet pipe, and discharged from the water outlet pipe, so that the cooling liquid can rapidly remove the heat absorbed by the heat dissipation pipe when flowing through, to ensure the cooling effect of the heat dissipation pipe.

[0019] II, when the scale appears on the heat dissipation shell inside the tower top cover and accumulates in large quantities, the cooling efficiency of the steam is reduced due to the low heat transfer efficiency of the scale, so that the pressure inside the tower top cover increases, and the pressure inside the tower top cover is observed by the pressure gauge, and the scale on the surface of the heat dissipation shell inside the tower top cover is scraped off by the scraping ring driven by the air cylinder, to ensure the cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0020] The drawings described herein are used to provide further understanding of the utility model and constitute a part of this application:

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a partial sectional view of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the heat dissipation shell in the utility model;

[0024] Figure 4The utility model discloses a structure diagram of the heat dissipation pipe.

[0025] Figure 5 The utility model discloses a structure diagram of the scraper ring.

[0026] In the drawing: 1, tower top cover;11, flange plate;2, cooling mechanism;20, heat dissipation shell;21, heat dissipation pipe;22, water inlet pipe;23, water outlet pipe;3, cleaning mechanism;31, scraper ring;32, connecting block;33, air cylinder;34, filter plate;35, collection tank;4, pressure gauge. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative work belong to the range of the utility model protection.

[0028] A water circulation alcohol ether column tower top vapor recovery structure, as shown in Figure 1 , Figure 5 As shown, including tower top cover 1, the bottom of the outer wall of tower top cover 1 is fixedly connected with flange plate 11, the top of tower top cover 1 is provided with cooling mechanism 2 for cooling steam, the inside of tower top cover 1 is provided with cleaning mechanism 3 for cleaning scale, cooling mechanism 2 includes heat dissipation shell 20, heat dissipation shell 20 is fixedly connected at the top of tower top cover 1, and is spiral, and extends to the inside of tower top cover 1, and heat dissipation pipe 21 is inlaid in the spiral recess formed in the outside of tower top cover 1 at heat dissipation shell 20, heat dissipation pipe 21 is spiral, and the one end of heat dissipation pipe 21 at the spiral center is fixedly connected with water inlet pipe 22, and the one end of heat dissipation pipe 21 at the spiral edge is fixedly connected with water outlet pipe 23.

[0029] In the embodiment, the heat dissipation shell 20 of spiral shape is arranged at the top of tower top cover 1 and extends to the inside of tower top cover 1, the heat dissipation shell 20 with large heat transfer area is arranged in the relatively limited space, so that the heat of steam emitted in the inside of tower top cover 1 can be rapidly emitted from heat dissipation shell 20 at the inside of tower top cover 1 to the outside, and rapidly absorbed by heat dissipation pipe 21 inlaid in the recess at the outside of heat dissipation shell 20, and then the cooling liquid is connected to water inlet pipe 22, passes through heat dissipation pipe 21 and is discharged from water outlet pipe 23, so that the cooling liquid can rapidly take away the heat absorbed by heat dissipation pipe 21 when flowing, to ensure the cooling effect of heat dissipation pipe 21.

[0030] As shown in Figure 2 , Figure 5As shown, preferably, the top of the tower top cover 1 is connected with a pressure gauge 4 for detecting the pressure inside the tower top cover 1, the cleaning mechanism 3 comprises a scraping ring 31 arranged inside the tower top cover 1, and the scraping ring 31 is in shape adaptation, contact and sliding connection with the inner side part of the heat dissipation shell 20, and the top of the tower top cover 1 is fixedly connected with three groups of air cylinders 33, and the telescopic ends of the air cylinders 33 extend into the inside of the tower top cover 1 and are fixedly connected with the scraping ring 31 through connecting blocks 32.

[0031] In this embodiment, when the scale appears and accumulates in large quantities on the inner side part of the heat dissipation shell 20 in the tower top cover 1, the steam cooling efficiency is reduced due to the low heat transfer efficiency of the scale, which increases the pressure inside the tower top cover 1, and the pressure inside the tower top cover 1 is observed to be too high through the pressure gauge 4, and the scale on the surface of the inner side part of the heat dissipation shell 20 in the tower top cover 1 is scraped off by the scraping ring 31 driven by the telescopic air cylinders 33, so as to ensure the cooling effect.

[0032] As shown in the Figure 2 preferably, a filter plate 34 is arranged below the scraping ring 31 inside the tower top cover 1, and the filter plate 34 is in the shape of a conical protrusion, the edge of the bottom of the filter plate 34 is fixedly connected with a collecting groove 35, and the collecting groove 35 is annular and fixedly connected with the inner wall of the tower top cover 1.

[0033] In this embodiment, after the scale is scraped off and falls back to the conical protruding filter plate 34, it is filtered and intercepted, and the intercepted scale slides down the inclined surface of the filter plate 34 into the collecting groove 35 for collection.

[0034] The utility model discloses a kind of alcohol ether column overhead vapor recovery structures of water circulation, when using, by being provided with the heat dissipation shell 20 of vortex shape in the top of tower top cover 1 extends to the inside of tower top cover 1, by the way of being arranged in relatively limited space heat dissipation shell 20 of larger heat transfer area, so that the heat of steam emission in the inside of tower top cover 1 can be rapidly emitted from heat dissipation shell 20 inside tower top cover 1 to outside, and be embedded in the heat dissipation pipe 21 of heat dissipation shell 20 outside recessed and rapidly absorbed, again by cooling liquid from water inlet pipe 22 access and be discharged from water outlet pipe 23 again through heat dissipation pipe 21, so that cooling liquid can rapidly take away the heat absorbed by heat dissipation pipe 21 when flowing, to guarantee the cooling effect of heat dissipation pipe 21, when water scale appears in the inside portion of heat dissipation shell 20 in tower top cover 1, and is accumulated in large quantities, due to the lower heat transfer efficiency of water scale, leading to the decline of steam cooling efficiency, so that the pressure in the inside of tower top cover 1 increases, the pressure in the inside of tower top cover 1 is observed to be too high through the pressure gauge 4 arranged, and the water scale on the surface of heat dissipation shell 20 in the inside portion of tower top cover 1 is scraped off by the scraping ring 31 driven by the cylinder 33 to guarantee the effect of cooling, and after being scraped off and falling, the water scale is back to the conical convex filter plate 34, is filtered and intercepted, and the intercepted water scale slides into collecting groove 35 along the inclined surface of filter plate 34 and is collected.

[0035] It should be noted that, in the present document, relational terms such as first and second and the like can 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. Moreover, 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0036] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.

Claims

1. A structure for recovering top steam of an alcohol-ether column during water circulation, comprising a top cover (1), characterized in that: A flange (11) is fixedly connected to the bottom of the outer wall of the tower top cover (1); The top of the tower cover (1) is provided with a cooling mechanism (2) for cooling steam; The tower top cover (1) is equipped with a cleaning mechanism (3) for cleaning scale; The cooling mechanism (2) includes a heat dissipation shell (20), which is fixedly connected to the top of the tower top cover (1) and is vortex-shaped, extending into the interior of the tower top cover (1). The heat dissipation shell (20) is embedded in the vortex-shaped recess formed on the outer side of the tower top cover (1) with heat dissipation pipes (21).

2. The vapor recovery structure at the top of an alcohol-ether tower during water circulation according to claim 1, characterized in that: The heat dissipation pipe (21) is vortex-shaped. A water inlet pipe (22) is fixedly connected to one end of the heat dissipation pipe (21) at the center of the vortex, and a water outlet pipe (23) is fixedly connected to one end of the heat dissipation pipe (21) at the edge of the vortex.

3. The vapor recovery structure at the top of an alcohol-ether tower during water circulation according to claim 1, characterized in that: A pressure gauge (4) is connected to the top of the tower top cover (1) to detect the pressure inside the tower top cover (1).

4. The vapor recovery structure at the top of an alcohol-ether tower during water circulation according to claim 1, characterized in that: The cleaning mechanism (3) includes a scraper ring (31), which is located inside the tower top cover (1). The scraper ring (31) is shaped to fit the heat sink shell (20) on the inner side of the tower top cover (1) and is in contact with and slidably connected to it.

5. The vapor recovery structure at the top of an alcohol-ether tower during water circulation according to claim 4, characterized in that: The top of the tower cover (1) is fixedly connected to three sets of cylinders (33), and the telescopic ends of the cylinders (33) extend into the interior of the tower cover (1) and are fixedly connected to the scraper ring (31) through the connecting block (32).

6. The vapor recovery structure at the top of an alcohol-ether tower during water circulation according to claim 5, characterized in that: A filter plate (34) is provided inside the tower top cover (1) below the scraper ring (31), and the filter plate (34) is in the shape of a conical protrusion.

7. The vapor recovery structure at the top of an alcohol-ether tower during water circulation according to claim 6, characterized in that: The bottom edge of the filter plate (34) is fixedly connected to a collection trough (35), which is annular and fixedly connected to the inner wall of the tower top cover (1).

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